6.12-stable review patch. If anyone has any objections, please let me know.
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From: Mirsad Todorovac mtodorovac69@gmail.com
[ Upstream commit ff1060813d9347e8c45c8b8cff93a4dfdb6726ad ]
On the linux-next, next-20241108 vanilla kernel, the coccinelle tool gave the following error report:
./net/9p/trans_usbg.c:912:5-11: ERROR: allocation function on line 911 returns NULL not ERR_PTR on failure
kzalloc() failure is fixed to handle the NULL return case on the memory exhaustion.
Fixes: a3be076dc174d ("net/9p/usbg: Add new usb gadget function transport") Cc: Michael Grzeschik m.grzeschik@pengutronix.de Cc: Eric Van Hensbergen ericvh@kernel.org Cc: Latchesar Ionkov lucho@ionkov.net Cc: Dominique Martinet asmadeus@codewreck.org Cc: Christian Schoenebeck linux_oss@crudebyte.com Cc: v9fs@lists.linux.dev Cc: linux-kernel@vger.kernel.org Signed-off-by: Mirsad Todorovac mtodorovac69@gmail.com Message-ID: 20241109211840.721226-2-mtodorovac69@gmail.com Signed-off-by: Dominique Martinet asmadeus@codewreck.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/9p/trans_usbg.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/9p/trans_usbg.c b/net/9p/trans_usbg.c index 975b76839dca1..6b694f117aef2 100644 --- a/net/9p/trans_usbg.c +++ b/net/9p/trans_usbg.c @@ -909,9 +909,9 @@ static struct usb_function_instance *usb9pfs_alloc_instance(void) usb9pfs_opts->buflen = DEFAULT_BUFLEN;
dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (IS_ERR(dev)) { + if (!dev) { kfree(usb9pfs_opts); - return ERR_CAST(dev); + return ERR_PTR(-ENOMEM); }
usb9pfs_opts->dev = dev;