11 Jan
2017
11 Jan
'17
5:26 p.m.
On Wed, 11 Jan 2017 14:39:44 +0100, Arnd Bergmann wrote:
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
Applied, thanks.
Takashi