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clk: mmp: pxa168: Fix memory leak in pxa168_clk_init()

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[ Upstream commit 2fbabea626b6467eb4e6c4cb7a16523da12e43b4 ]

In cases where mapping of mpmu/apmu/apbc registers fails, the code path
does not handle the failure gracefully, potentially leading to a memory
leak. This fix ensures proper cleanup by freeing the allocated memory
for 'pxa_unit' before returning.

Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Link: https://lore.kernel.org/r/20231210175232.3414584-1-visitorckw@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit 15b51ad774214f9bd9a969bf4880ebeb4dbd4868)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
This commit is contained in:
Kuan-Wei Chiu 2023-12-11 01:52:32 +08:00 committed by Vegard Nossum
parent 9b68e07d9d
commit 96bc3d1b30
1 changed files with 3 additions and 0 deletions
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3
drivers/clk/mmp/clk-of-pxa168.c
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@ -258,18 +258,21 @@ static void __init pxa168_clk_init(struct device_node *np)
pxa_unit->mpmu_base = of_iomap(np, 0);
if (!pxa_unit->mpmu_base) {
pr_err("failed to map mpmu registers\n");
kfree(pxa_unit);
return;
}
pxa_unit->apmu_base = of_iomap(np, 1);
if (!pxa_unit->apmu_base) {
pr_err("failed to map apmu registers\n");
kfree(pxa_unit);
return;
}
pxa_unit->apbc_base = of_iomap(np, 2);
if (!pxa_unit->apbc_base) {
pr_err("failed to map apbc registers\n");
kfree(pxa_unit);
return;
}