usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info()
authorJianglei Nie <niejianglei2021@163.com>
Wed, 21 Sep 2022 12:34:45 +0000 (15:34 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 26 Oct 2022 11:17:13 +0000 (13:17 +0200)
commite702de2f5c893bf2cdb0152191f99a6ad1411823
treeb11a737ae1dda20768e777d2aa88f7d43ca67b27
parent7d808fe6af8409cf9f46ed2b10840e5788985e9b
usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info()

[ Upstream commit 7e271f42a5cc3768cd2622b929ba66859ae21f97 ]

xhci_alloc_stream_info() allocates stream context array for stream_info
->stream_ctx_array with xhci_alloc_stream_ctx(). When some error occurs,
stream_info->stream_ctx_array is not released, which will lead to a
memory leak.

We can fix it by releasing the stream_info->stream_ctx_array with
xhci_free_stream_ctx() on the error path to avoid the potential memory
leak.

Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220921123450.671459-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/usb/host/xhci-mem.c