AcoSail/kernel_optimize_test
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staging: unisys: Add checks for creation

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There was a bunch of channel creation checks before the
visorchannel_create function was called, moving some of those
checks inside.  This keeps the outside code cleaner and handles
the situation where a caller forgets to make these checks.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Don Zickus 2015-05-13 13:22:21 -04:00 committed by Greg Kroah-Hartman
parent 4f6d8a9783
commit d5531f3701
1 changed files with 3 additions and 0 deletions
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drivers/staging/unisys/visorbus/visorchannel.c
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@ -62,6 +62,9 @@ visorchannel_create_guts(u64 physaddr, unsigned long channel_bytes,
int err;
size_t size = sizeof(struct channel_header);
if (physaddr == 0)
return NULL;
channel = kzalloc(sizeof(*channel), gfp);
if (!channel)
goto cleanup;