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authorArnd Bergmann <arnd@arndb.de>2017-01-11 14:39:44 +0100
committerTakashi Iwai <tiwai@suse.de>2017-01-11 17:19:23 +0100
commit46a049dae771b95e77ac6c823330f4a60f600236 (patch)
tree8620694d4b704e717517c9730145d76bc68fd9a5 /sound/core
parent921282360b9c9bf34c75cd18bb90f298c4f4ebc8 (diff)
downloadlinux-46a049dae771b95e77ac6c823330f4a60f600236.tar.bz2
ALSA: hda/ca0132 - fix possible NULL pointer use
gcc-7 caught what it considers a NULL pointer dereference: sound/pci/hda/patch_ca0132.c: In function 'dspio_scp.constprop': sound/pci/hda/patch_ca0132.c:1487:4: error: argument 1 null where non-null expected [-Werror=nonnull] This is plausible from looking at the function, as we compare 'reply' to NULL earlier in it. I have not tried to analyze if there are constraints that make it impossible to hit the bug, but adding another NULL check in the end kills the warning and makes the function more robust. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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