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cxl/mbox: Replace NULL check with IS_ERR() after vmemdup_user()

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vmemdup_user() returns an ERR_PTR() on failure. Use IS_ERR()
to check the return value.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20220407010915.1211258-1-alison.schofield@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Alison Schofield 2022-04-06 18:09:15 -07:00 committed by Dan Williams
parent 26f89535a5
commit 280302f0e8
1 changed files with 1 additions and 1 deletions
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2
drivers/cxl/core/mbox.c
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@ -265,7 +265,7 @@ static int cxl_mbox_cmd_ctor(struct cxl_mbox_cmd *mbox,
if (in_size) {
mbox->payload_in = vmemdup_user(u64_to_user_ptr(in_payload),
in_size);
if (!mbox->payload_in)
if (IS_ERR(mbox->payload_in))
return PTR_ERR(mbox->payload_in);
if (!cxl_payload_from_user_allowed(opcode, mbox->payload_in)) {