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ice: Fix potential memory leak in ice_gnss_tty_write()

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[ Upstream commit f58985620f ]

The ice_gnss_tty_write() return directly if the write_buf alloc failed,
leaking the cmd_buf.

Fix by free cmd_buf if write_buf alloc failed.

Fixes: d6b98c8d24 ("ice: add write functionality for GNSS TTY")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yuan Can
2022-12-07 08:55:02 +00:00
committed by Greg Kroah-Hartman
parent f2faf0699a
commit 500ca1da9d
1 changed files with 1 additions and 0 deletions
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1
drivers/net/ethernet/intel/ice/ice_gnss.c
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@@ -363,6 +363,7 @@ ice_gnss_tty_write(struct tty_struct *tty, const unsigned char *buf, int count)
/* Send the data out to a hardware port */
write_buf = kzalloc(sizeof(*write_buf), GFP_KERNEL);
if (!write_buf) {
kfree(cmd_buf);
err = -ENOMEM;
goto exit;
}