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authorWei Yongjun <yongjun_wei@trendmicro.com.cn>2013-10-25 21:53:33 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-06-11 12:04:20 -0700
commit422c451501b6276c8ad4bea5ac6bf85322592d1e (patch)
treead23f62ebaf7abc6b0bdee46d1f88d16f2cf5fc6
parent263ee55a37e7fd03646449cbc07e16b7943f0572 (diff)
downloadlinux-linaro-stable-422c451501b6276c8ad4bea5ac6bf85322592d1e.tar.gz
target/pscsi: fix return value check
commit 58932e96e438cd78f75e765d7b87ef39d3533d15 upstream. In case of error, the function scsi_host_lookup() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> [bwh: Backported to 3.2: pscsi_configure_device() returns a pointer] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: Rui Xiang <rui.xiang@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/target/target_core_pscsi.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index d084ba328af0..d34577dbfd25 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -128,10 +128,10 @@ static int pscsi_pmode_enable_hba(struct se_hba *hba, unsigned long mode_flag)
* pSCSI Host ID and enable for phba mode
*/
sh = scsi_host_lookup(phv->phv_host_id);
- if (IS_ERR(sh)) {
+ if (!sh) {
pr_err("pSCSI: Unable to locate SCSI Host for"
" phv_host_id: %d\n", phv->phv_host_id);
- return PTR_ERR(sh);
+ return -EINVAL;
}
phv->phv_lld_host = sh;
@@ -562,10 +562,10 @@ static struct se_device *pscsi_create_virtdevice(
sh = phv->phv_lld_host;
} else {
sh = scsi_host_lookup(pdv->pdv_host_id);
- if (IS_ERR(sh)) {
+ if (!sh) {
pr_err("pSCSI: Unable to locate"
" pdv_host_id: %d\n", pdv->pdv_host_id);
- return ERR_CAST(sh);
+ return ERR_PTR(-EINVAL);
}
}
} else {