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usb: gadget: aspeed: Add NULL pointer check in ast_vhub_init_dev()

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[ Upstream commit 8c75f3e6a4 ]

The variable d->name, returned by devm_kasprintf(), could be NULL.
A pointer check is added to prevent potential NULL pointer dereference.
This is similar to the fix in commit 3027e7b15b
("ice: Fix some null pointer dereference issues in ice_ptp.c").

This issue is found by our static analysis tool

Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com>
Link: https://lore.kernel.org/r/20250311012705.1233829-1-chenyuan0y@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chenyuan Yang
2025-03-10 20:27:05 -05:00
committed by Greg Kroah-Hartman
parent 3a259d74f5
commit d26a6093d5
1 changed files with 3 additions and 0 deletions
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drivers/usb/gadget/udc/aspeed-vhub/dev.c
+3
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@@ -538,6 +538,9 @@ int ast_vhub_init_dev(struct ast_vhub *vhub, unsigned int idx)
d->vhub = vhub;
d->index = idx;
d->name = devm_kasprintf(parent, GFP_KERNEL, "port%d", idx+1);
if (!d->name)
return -ENOMEM;
d->regs = vhub->regs + 0x100 + 0x10 * idx;
ast_vhub_init_ep0(vhub, &d->ep0, d);