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net: wwan: iosm: Fix memory leak in ipc_mux_deinit() 

[ Upstream commit 92e6e0a87f6860a4710f9494f8c704d498ae60f8 ]

Commit 1f52d7b622 ("net: wwan: iosm: Enable M.2 7360 WWAN card support")
allocated memory for pp_qlt in ipc_mux_init() but did not free it in
ipc_mux_deinit(). This results in a memory leak when the driver is
unloaded.

Free the allocated memory in ipc_mux_deinit() to fix the leak.

Fixes: 1f52d7b622 ("net: wwan: iosm: Enable M.2 7360 WWAN card support")
Co-developed-by: Jianhao Xu <jianhao.xu@seu.edu.cn>
Signed-off-by: Jianhao Xu <jianhao.xu@seu.edu.cn>
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Reviewed-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Link: https://patch.msgid.link/20251230071853.1062223-1-zilin@seu.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Zilin Guan 2025-12-30 07:18:53 +00:00 committed by Greg Kroah-Hartman
parent f2c4bcfa19
commit 8181c79757
1 changed files with 6 additions and 0 deletions
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6
drivers/net/wwan/iosm/iosm_ipc_mux.c
View File

@ -456,6 +456,7 @@ void ipc_mux_deinit(struct iosm_mux *ipc_mux)
struct sk_buff_head *free_list;
union mux_msg mux_msg;
struct sk_buff *skb;
int i;
if (!ipc_mux->initialized)
return;
@ -479,5 +480,10 @@ void ipc_mux_deinit(struct iosm_mux *ipc_mux)
ipc_mux->channel->dl_pipe.is_open = false;
}
if (ipc_mux->protocol != MUX_LITE) {
for (i = 0; i < IPC_MEM_MUX_IP_SESSION_ENTRIES; i++)
kfree(ipc_mux->ul_adb.pp_qlt[i]);
}
kfree(ipc_mux);
}