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misc: cxl: Fix possible null pointer dereference

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[ Upstream commit 3dac3583bf1a61db6aaf31dfd752c677a4400afd ]

It is not safe to dereference an object before a null test. It is
not needed and just remove them. Ftrace can be used instead.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
zhong jiang 2018-10-04 13:02:53 +08:00 committed by Greg Kroah-Hartman
parent f3c5e428e0
commit b8199f6a79
1 changed files with 0 additions and 2 deletions
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2
drivers/misc/cxl/guest.c
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@ -1026,8 +1026,6 @@ err1:
void cxl_guest_remove_afu(struct cxl_afu *afu)
{
pr_devel("in %s - AFU(%d)\n", __func__, afu->slice);
if (!afu)
return;