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authorTakashi Iwai <tiwai@suse.de>2014-08-10 13:30:08 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-09-05 16:28:34 -0700
commit65d6bdd5e4438a64d7806c22ba85bfa5f3a03f89 (patch)
treecb7d14748cda3d66d44890f5ec2eb202e956b5db /sound/pci
parent07a0ed1d0e6b32747e7f4723966c54e2652e3c74 (diff)
downloadlinux-linaro-stable-65d6bdd5e4438a64d7806c22ba85bfa5f3a03f89.tar.gz
ALSA: hda/ca0132 - Don't try loading firmware at resume when already failed
commit e24aa0a4c5ac92a171d9dd74a8d3dbf652990d36 upstream. CA0132 driver tries to reload the firmware at resume. Usually this works since the firmware loader core caches the firmware contents by itself. However, if the driver failed to load the firmwares (e.g. missing files), reloading the firmware at resume goes through the actual file loading code path, and triggers a kernel WARNING like: WARNING: CPU: 10 PID:11371 at drivers/base/firmware_class.c:1105 _request_firmware+0x9ab/0x9d0() For avoiding this situation, this patch makes CA0132 skipping the f/w loading at resume when it failed at probe time. Reported-and-tested-by: Janek Kozicki <cosurgi@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/hda/patch_ca0132.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 01fefbe29e4a..4126f3d9edb6 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -4379,6 +4379,9 @@ static void ca0132_download_dsp(struct hda_codec *codec)
return; /* NOP */
#endif
+ if (spec->dsp_state == DSP_DOWNLOAD_FAILED)
+ return; /* don't retry failures */
+
chipio_enable_clocks(codec);
spec->dsp_state = DSP_DOWNLOADING;
if (!ca0132_download_dsp_images(codec))
@@ -4555,7 +4558,8 @@ static int ca0132_init(struct hda_codec *codec)
struct auto_pin_cfg *cfg = &spec->autocfg;
int i;
- spec->dsp_state = DSP_DOWNLOAD_INIT;
+ if (spec->dsp_state != DSP_DOWNLOAD_FAILED)
+ spec->dsp_state = DSP_DOWNLOAD_INIT;
spec->curr_chip_addx = INVALID_CHIP_ADDRESS;
snd_hda_power_up(codec);
@@ -4666,6 +4670,7 @@ static int patch_ca0132(struct hda_codec *codec)
codec->spec = spec;
spec->codec = codec;
+ spec->dsp_state = DSP_DOWNLOAD_INIT;
spec->num_mixers = 1;
spec->mixers[0] = ca0132_mixer;