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rpmsg: glink: Add check for kstrdup

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[ Upstream commit b5c9ee8296a3760760c7b5d2e305f91412adc795 ]

Add check for the return value of kstrdup() and return the error
if it fails in order to avoid NULL pointer dereference.

Fixes: b4f8e52b89 ("rpmsg: Introduce Qualcomm RPM glink driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20230619030631.12361-1-jiasheng@iscas.ac.cn
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jiasheng Jiang 2023-06-19 11:06:31 +08:00 committed by Greg Kroah-Hartman
parent d2473df751
commit efa7f31669
1 changed files with 4 additions and 0 deletions
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4
drivers/rpmsg/qcom_glink_native.c
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@ -222,6 +222,10 @@ static struct glink_channel *qcom_glink_alloc_channel(struct qcom_glink *glink,
channel->glink = glink; channel->glink = glink;
channel->name = kstrdup(name, GFP_KERNEL); channel->name = kstrdup(name, GFP_KERNEL);
if (!channel->name) {
kfree(channel);
return ERR_PTR(-ENOMEM);
}
init_completion(&channel->open_req); init_completion(&channel->open_req);
init_completion(&channel->open_ack); init_completion(&channel->open_ack);