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path: root/drivers/hid/i2c-hid/i2c-hid.c
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Diffstat (limited to 'drivers/hid/i2c-hid/i2c-hid.c')
-rw-r--r--drivers/hid/i2c-hid/i2c-hid.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index 2b1799a3b212..469daa04dadb 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -134,6 +134,7 @@ struct i2c_hid {
* descriptor. */
unsigned int bufsize; /* i2c buffer size */
char *inbuf; /* Input buffer */
+ char *rawbuf; /* Raw Input buffer */
char *cmdbuf; /* Command buffer */
char *argsbuf; /* Command arguments buffer */
@@ -340,7 +341,7 @@ static int i2c_hid_hwreset(struct i2c_client *client)
static void i2c_hid_get_input(struct i2c_hid *ihid)
{
int ret, ret_size;
- int size = le16_to_cpu(ihid->hdesc.wMaxInputLength);
+ int size = ihid->bufsize;
ret = i2c_master_recv(ihid->client, ihid->inbuf, size);
if (ret != size) {
@@ -471,9 +472,11 @@ static void i2c_hid_find_max_report(struct hid_device *hid, unsigned int type,
static void i2c_hid_free_buffers(struct i2c_hid *ihid)
{
kfree(ihid->inbuf);
+ kfree(ihid->rawbuf);
kfree(ihid->argsbuf);
kfree(ihid->cmdbuf);
ihid->inbuf = NULL;
+ ihid->rawbuf = NULL;
ihid->cmdbuf = NULL;
ihid->argsbuf = NULL;
ihid->bufsize = 0;
@@ -489,10 +492,11 @@ static int i2c_hid_alloc_buffers(struct i2c_hid *ihid, size_t report_size)
report_size; /* report */
ihid->inbuf = kzalloc(report_size, GFP_KERNEL);
+ ihid->rawbuf = kzalloc(report_size, GFP_KERNEL);
ihid->argsbuf = kzalloc(args_len, GFP_KERNEL);
ihid->cmdbuf = kzalloc(sizeof(union command) + args_len, GFP_KERNEL);
- if (!ihid->inbuf || !ihid->argsbuf || !ihid->cmdbuf) {
+ if (!ihid->inbuf || !ihid->rawbuf || !ihid->argsbuf || !ihid->cmdbuf) {
i2c_hid_free_buffers(ihid);
return -ENOMEM;
}
@@ -519,12 +523,12 @@ static int i2c_hid_get_raw_report(struct hid_device *hid,
ret = i2c_hid_get_report(client,
report_type == HID_FEATURE_REPORT ? 0x03 : 0x01,
- report_number, ihid->inbuf, ask_count);
+ report_number, ihid->rawbuf, ask_count);
if (ret < 0)
return ret;
- ret_count = ihid->inbuf[0] | (ihid->inbuf[1] << 8);
+ ret_count = ihid->rawbuf[0] | (ihid->rawbuf[1] << 8);
if (ret_count <= 2)
return 0;
@@ -533,7 +537,7 @@ static int i2c_hid_get_raw_report(struct hid_device *hid,
/* The query buffer contains the size, dropping it in the reply */
count = min(count, ret_count - 2);
- memcpy(buf, ihid->inbuf + 2, count);
+ memcpy(buf, ihid->rawbuf + 2, count);
return count;
}