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authorWan Jiabing <wanjiabing@vivo.com>2022-03-07 12:41:48 +0300
committerDan Williams <dan.j.williams@intel.com>2022-03-22 20:51:17 +0300
commit05e815539f3f161585c13a9ab023341bade2c52f (patch)
treea7e4119704ac9252cdab35bc345bf1f40193c18f
parent74be98774dfbc5b8b795db726bd772e735d2edd4 (diff)
downloadlinux-05e815539f3f161585c13a9ab023341bade2c52f.tar.xz
cxl/core/port: Fix NULL but dereferenced coccicheck error
Fix the following coccicheck warning: ./drivers/cxl/core/port.c:913:21-24: ERROR: port is NULL but dereferenced. The put_device() is only relevent in the is_cxl_root() case. Fixes: 2703c16c75ae ("cxl/core/port: Add switch port enumeration") Signed-off-by: Wan Jiabing <wanjiabing@vivo.com> Link: https://lore.kernel.org/r/20220307094158.404882-1-wanjiabing@vivo.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
-rw-r--r--drivers/cxl/core/port.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c
index c1681248f322..2ab1ba4499b3 100644
--- a/drivers/cxl/core/port.c
+++ b/drivers/cxl/core/port.c
@@ -911,7 +911,10 @@ static void cxl_detach_ep(void *data)
break;
port = find_cxl_port(dport_dev);
- if (!port || is_cxl_root(port)) {
+ if (!port)
+ continue;
+
+ if (is_cxl_root(port)) {
put_device(&port->dev);
continue;
}