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authorAditya Pakki <pakki001@umn.edu>2019-03-20 18:27:11 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-03-26 10:48:55 +0300
commit41f00e6e9e55546390031996b773e7f3c1d95928 (patch)
tree7f73df8ce07550130c144d8c314e9fe3642c1e67 /drivers/usb/misc
parente671765e521c571afec3157a7e17502d54f6a43e (diff)
downloadlinux-41f00e6e9e55546390031996b773e7f3c1d95928.tar.xz
usb: usb251xb: fix to avoid potential NULL pointer dereference
of_match_device in usb251xb_probe can fail and returns a NULL pointer. The patch avoids a potential NULL pointer dereference in this scenario. Signed-off-by: Aditya Pakki <pakki001@umn.edu> Reviewed-by: Richard Leitner <richard.leitner@skidata.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/misc')
-rw-r--r--drivers/usb/misc/usb251xb.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
index 2c8e2cad7e10..04684849d683 100644
--- a/drivers/usb/misc/usb251xb.c
+++ b/drivers/usb/misc/usb251xb.c
@@ -612,7 +612,7 @@ static int usb251xb_probe(struct usb251xb *hub)
dev);
int err;
- if (np) {
+ if (np && of_id) {
err = usb251xb_get_ofdata(hub,
(struct usb251xb_data *)of_id->data);
if (err) {