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| author | Aditya Pakki <pakki001@umn.edu> | 2019-03-20 18:27:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-04 10:20:20 +0300 |
| commit | 0018c21f34d666c2755460123d9f37a02dc8ce60 (patch) | |
| tree | f2cfcd2a0b672d95f6a293d55e04f3c40b19a0d4 /drivers/usb/misc/usb251xb.c | |
| parent | 4135e588274e7b8ddeea95683f9d70f19d019f2e (diff) | |
| download | linux-0018c21f34d666c2755460123d9f37a02dc8ce60.tar.xz | |
usb: usb251xb: fix to avoid potential NULL pointer dereference
[ Upstream commit 41f00e6e9e55546390031996b773e7f3c1d95928 ]
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>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
Diffstat (limited to 'drivers/usb/misc/usb251xb.c')
| -rw-r--r-- | drivers/usb/misc/usb251xb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c index a6efb9a72939..5f7734c729b1 100644 --- a/drivers/usb/misc/usb251xb.c +++ b/drivers/usb/misc/usb251xb.c @@ -601,7 +601,7 @@ 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) { |