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authorTakashi Iwai <tiwai@suse.de>2014-10-27 15:15:44 +0100
committerTakashi Iwai <tiwai@suse.de>2014-10-27 15:17:54 +0100
commit66797f36fd17e8975f4a3449aed895cda952c0ce (patch)
tree315e11d30d969fffac8abd38fda040b90f4947a4
parent85c24cd8d3676cbae9e8809e894e68025c6d497e (diff)
ALSA: hda - Pass printf argument directly to request_module()
request_module() handles the printf style arguments, so we don't have to render strings in the caller side. Not only it reduces the unnecessary temporary string buffer, it's even safer from the security POV. Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/pci/hda/hda_codec.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 259fbeaa37bd..0025bf4c2f44 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -966,14 +966,12 @@ find_codec_preset(struct hda_codec *codec)
mutex_unlock(&preset_mutex);
if (mod_requested < HDA_MODREQ_MAX_COUNT) {
- char name[32];
if (!mod_requested)
- snprintf(name, sizeof(name), "snd-hda-codec-id:%08x",
- codec->vendor_id);
+ request_module("snd-hda-codec-id:%08x",
+ codec->vendor_id);
else
- snprintf(name, sizeof(name), "snd-hda-codec-id:%04x*",
- (codec->vendor_id >> 16) & 0xffff);
- request_module(name);
+ request_module("snd-hda-codec-id:%04x*",
+ (codec->vendor_id >> 16) & 0xffff);
mod_requested++;
goto again;
}