The patch titled
Subject: mm/zswap: fix passing zero to 'PTR_ERR' warning
has been added to the -mm tree. Its filename is
mm-zswap-fix-passing-zero-to-ptr_err-warning.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-zswap-fix-passing-zero-to-ptr_err-warning.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-zswap-fix-passing-zero-to-ptr_err-warning.patch
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------------------------------------------------------
From: YueHaibing <yuehaibing@xxxxxxxxxx>
Subject: mm/zswap: fix passing zero to 'PTR_ERR' warning
Fix smatch warning:
mm/zswap.c:425 zswap_cpu_comp_prepare() warn: passing zero to 'PTR_ERR'
crypto_alloc_comp() never return NULL, use IS_ERR instead of
IS_ERR_OR_NULL to fix this.
Link: https://lkml.kernel.org/r/20201031055615.28080-1-yuehaibing@xxxxxxxxxx
Fixes: f1c54846ee45 ("zswap: dynamic pool creation")
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
Cc: Seth Jennings <sjenning@xxxxxxxxxx>
Cc: Dan Streetman <ddstreet@xxxxxxxx>
Cc: Vitaly Wool <vitaly.wool@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/zswap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/zswap.c~mm-zswap-fix-passing-zero-to-ptr_err-warning
+++ a/mm/zswap.c
@@ -421,7 +421,7 @@ static int zswap_cpu_comp_prepare(unsign
return 0;
tfm = crypto_alloc_comp(pool->tfm_name, 0, 0);
- if (IS_ERR_OR_NULL(tfm)) {
+ if (IS_ERR(tfm)) {
pr_err("could not alloc crypto comp %s : %ld\n",
pool->tfm_name, PTR_ERR(tfm));
return -ENOMEM;
_
Patches currently in -mm which might be from yuehaibing@xxxxxxxxxx are
mm-zswap-fix-passing-zero-to-ptr_err-warning.patch
