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authorMagnus Damm <magnus@valinux.co.jp>2006-07-10 04:44:09 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-10 13:24:15 -0700
commit73ca66b97b73257a7d832d502c36fc19fe847809 (patch)
treed39f50b1931d67c51e56f891b785be1143599177
parent454d6fbc48374be8f53b9bafaa86530cf8eb3bc1 (diff)
downloadconfigs-73ca66b97b73257a7d832d502c36fc19fe847809.tar.gz
[PATCH] release_firmware() fixes
Use release_firmware() to free requested resources. According to Documentation/firmware_class/README the request_firmware() call should be followed by a release_firmware(). Some drivers do not however free the firmware previously allocated with request_firmware(). This patch tries to fix this by making sure that release_firmware() is used as expected. Signed-off-by: Magnus Damm <magnus@valinux.co.jp> Acked-by: Marcel Holtmann <marcel@holtmann.org> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--drivers/bluetooth/bcm203x.c1
-rw-r--r--drivers/media/dvb/frontends/nxt200x.c4
-rw-r--r--drivers/media/dvb/frontends/or51211.c2
-rw-r--r--drivers/media/dvb/frontends/sp8870.c2
-rw-r--r--drivers/media/dvb/frontends/sp887x.c2
-rw-r--r--drivers/media/video/cx88/cx88-blackbird.c3
-rw-r--r--drivers/net/wireless/spectrum_cs.c37
7 files changed, 25 insertions, 26 deletions
diff --git a/drivers/bluetooth/bcm203x.c b/drivers/bluetooth/bcm203x.c
index 6f67141f4de..13ba729cdd5 100644
--- a/drivers/bluetooth/bcm203x.c
+++ b/drivers/bluetooth/bcm203x.c
@@ -234,6 +234,7 @@ static int bcm203x_probe(struct usb_interface *intf, const struct usb_device_id
data->fw_data = kmalloc(firmware->size, GFP_KERNEL);
if (!data->fw_data) {
BT_ERR("Can't allocate memory for firmware image");
+ release_firmware(firmware);
usb_free_urb(data->urb);
kfree(data->buffer);
kfree(data);
diff --git a/drivers/media/dvb/frontends/nxt200x.c b/drivers/media/dvb/frontends/nxt200x.c
index 55671cb5255..87c286ee6a0 100644
--- a/drivers/media/dvb/frontends/nxt200x.c
+++ b/drivers/media/dvb/frontends/nxt200x.c
@@ -896,9 +896,9 @@ static int nxt2002_init(struct dvb_frontend* fe)
}
ret = nxt2002_load_firmware(fe, fw);
+ release_firmware(fw);
if (ret) {
printk("nxt2002: Writing firmware to device failed\n");
- release_firmware(fw);
return ret;
}
printk("nxt2002: Firmware upload complete\n");
@@ -960,9 +960,9 @@ static int nxt2004_init(struct dvb_frontend* fe)
}
ret = nxt2004_load_firmware(fe, fw);
+ release_firmware(fw);
if (ret) {
printk("nxt2004: Writing firmware to device failed\n");
- release_firmware(fw);
return ret;
}
printk("nxt2004: Firmware upload complete\n");
diff --git a/drivers/media/dvb/frontends/or51211.c b/drivers/media/dvb/frontends/or51211.c
index 26bed616fab..2bf124b5368 100644
--- a/drivers/media/dvb/frontends/or51211.c
+++ b/drivers/media/dvb/frontends/or51211.c
@@ -437,10 +437,10 @@ static int or51211_init(struct dvb_frontend* fe)
}
ret = or51211_load_firmware(fe, fw);
+ release_firmware(fw);
if (ret) {
printk(KERN_WARNING "or51211: Writing firmware to "
"device failed!\n");
- release_firmware(fw);
return ret;
}
printk(KERN_INFO "or51211: Firmware upload complete.\n");
diff --git a/drivers/media/dvb/frontends/sp8870.c b/drivers/media/dvb/frontends/sp8870.c
index 44ec5b9a469..d98fd5c2e13 100644
--- a/drivers/media/dvb/frontends/sp8870.c
+++ b/drivers/media/dvb/frontends/sp8870.c
@@ -318,7 +318,6 @@ static int sp8870_init (struct dvb_frontend* fe)
printk("sp8870: waiting for firmware upload (%s)...\n", SP8870_DEFAULT_FIRMWARE);
if (state->config->request_firmware(fe, &fw, SP8870_DEFAULT_FIRMWARE)) {
printk("sp8870: no firmware upload (timeout or file not found?)\n");
- release_firmware(fw);
return -EIO;
}
@@ -327,6 +326,7 @@ static int sp8870_init (struct dvb_frontend* fe)
release_firmware(fw);
return -EIO;
}
+ release_firmware(fw);
printk("sp8870: firmware upload complete\n");
/* enable TS output and interface pins */
diff --git a/drivers/media/dvb/frontends/sp887x.c b/drivers/media/dvb/frontends/sp887x.c
index b0a2b02f660..5c2f8f4e0ae 100644
--- a/drivers/media/dvb/frontends/sp887x.c
+++ b/drivers/media/dvb/frontends/sp887x.c
@@ -520,9 +520,9 @@ static int sp887x_init(struct dvb_frontend* fe)
}
ret = sp887x_initial_setup(fe, fw);
+ release_firmware(fw);
if (ret) {
printk("sp887x: writing firmware to device failed\n");
- release_firmware(fw);
return ret;
}
printk("sp887x: firmware upload complete\n");
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
index 349632b48e9..b60177f173c 100644
--- a/drivers/media/video/cx88/cx88-blackbird.c
+++ b/drivers/media/video/cx88/cx88-blackbird.c
@@ -453,11 +453,13 @@ static int blackbird_load_firmware(struct cx8802_dev *dev)
if (firmware->size != BLACKBIRD_FIRM_IMAGE_SIZE) {
dprintk(0, "ERROR: Firmware size mismatch (have %zd, expected %d)\n",
firmware->size, BLACKBIRD_FIRM_IMAGE_SIZE);
+ release_firmware(firmware);
return -1;
}
if (0 != memcmp(firmware->data, magic, 8)) {
dprintk(0, "ERROR: Firmware magic mismatch, wrong file?\n");
+ release_firmware(firmware);
return -1;
}
@@ -478,6 +480,7 @@ static int blackbird_load_firmware(struct cx8802_dev *dev)
}
if (checksum) {
dprintk(0, "ERROR: Firmware load failed (checksum mismatch).\n");
+ release_firmware(firmware);
return -1;
}
release_firmware(firmware);
diff --git a/drivers/net/wireless/spectrum_cs.c b/drivers/net/wireless/spectrum_cs.c
index 15465278c78..7f78b7801fb 100644
--- a/drivers/net/wireless/spectrum_cs.c
+++ b/drivers/net/wireless/spectrum_cs.c
@@ -34,8 +34,6 @@
#include "orinoco.h"
-static unsigned char *primsym;
-static unsigned char *secsym;
static const char primary_fw_name[] = "symbol_sp24t_prim_fw";
static const char secondary_fw_name[] = "symbol_sp24t_sec_fw";
@@ -440,7 +438,7 @@ spectrum_load_blocks(hermes_t *hw, const struct dblock *first_block)
*/
static int
spectrum_dl_image(hermes_t *hw, struct pcmcia_device *link,
- const unsigned char *image)
+ const unsigned char *image, int secondary)
{
int ret;
const unsigned char *ptr;
@@ -455,7 +453,7 @@ spectrum_dl_image(hermes_t *hw, struct pcmcia_device *link,
first_block = (const struct dblock *) ptr;
/* Read the PDA */
- if (image != primsym) {
+ if (secondary) {
ret = spectrum_read_pda(hw, pda, sizeof(pda));
if (ret)
return ret;
@@ -472,7 +470,7 @@ spectrum_dl_image(hermes_t *hw, struct pcmcia_device *link,
return ret;
/* Write the PDA to the adapter */
- if (image != primsym) {
+ if (secondary) {
ret = spectrum_apply_pda(hw, first_block, pda);
if (ret)
return ret;
@@ -487,7 +485,7 @@ spectrum_dl_image(hermes_t *hw, struct pcmcia_device *link,
ret = hermes_init(hw);
/* hermes_reset() should return 0 with the secondary firmware */
- if (image != primsym && ret != 0)
+ if (secondary && ret != 0)
return -ENODEV;
/* And this should work with any firmware */
@@ -509,33 +507,30 @@ spectrum_dl_firmware(hermes_t *hw, struct pcmcia_device *link)
const struct firmware *fw_entry;
if (request_firmware(&fw_entry, primary_fw_name,
- &handle_to_dev(link)) == 0) {
- primsym = fw_entry->data;
- } else {
+ &handle_to_dev(link)) != 0) {
printk(KERN_ERR PFX "Cannot find firmware: %s\n",
primary_fw_name);
return -ENOENT;
}
- if (request_firmware(&fw_entry, secondary_fw_name,
- &handle_to_dev(link)) == 0) {
- secsym = fw_entry->data;
- } else {
- printk(KERN_ERR PFX "Cannot find firmware: %s\n",
- secondary_fw_name);
- return -ENOENT;
- }
-
/* Load primary firmware */
- ret = spectrum_dl_image(hw, link, primsym);
+ ret = spectrum_dl_image(hw, link, fw_entry->data, 0);
+ release_firmware(fw_entry);
if (ret) {
printk(KERN_ERR PFX "Primary firmware download failed\n");
return ret;
}
- /* Load secondary firmware */
- ret = spectrum_dl_image(hw, link, secsym);
+ if (request_firmware(&fw_entry, secondary_fw_name,
+ &handle_to_dev(link)) != 0) {
+ printk(KERN_ERR PFX "Cannot find firmware: %s\n",
+ secondary_fw_name);
+ return -ENOENT;
+ }
+ /* Load secondary firmware */
+ ret = spectrum_dl_image(hw, link, fw_entry->data, 1);
+ release_firmware(fw_entry);
if (ret) {
printk(KERN_ERR PFX "Secondary firmware download failed\n");
}