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| author | Wei Chen <harperchen1110@gmail.com> | 2023-06-22 09:02:33 +0000 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2023-08-09 13:12:53 +0200 |
| commit | dce6d8f985fa1ef5c2af47f4f86ea65511b78656 (patch) | |
| tree | 093c794c359696c37e738b5865612e82e2f5c77d /Documentation | |
| parent | d83035433701919ac6db15f7737cbf554c36c1a6 (diff) | |
| download | linux-stable-dce6d8f985fa1ef5c2af47f4f86ea65511b78656.tar.gz linux-stable-dce6d8f985fa1ef5c2af47f4f86ea65511b78656.tar.bz2 linux-stable-dce6d8f985fa1ef5c2af47f4f86ea65511b78656.zip | |
mmc: sunplus: fix return value check of mmc_add_host()
mmc_add_host() may return error, if we ignore its return value,
1. the memory allocated in mmc_alloc_host() will be leaked
2. null-ptr-deref will happen when calling mmc_remove_host()
in remove function spmmc_drv_remove() because deleting not
added device.
Fix this by checking the return value of mmc_add_host(). Moreover,
I fixed the error handling path of spmmc_drv_probe() to clean up.
Fixes: 4e268fed8b18 ("mmc: Add mmc driver for Sunplus SP7021")
Cc: stable@vger.kernel.org
Signed-off-by: Wei Chen <harperchen1110@gmail.com>
Link: https://lore.kernel.org/r/20230622090233.188539-1-harperchen1110@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions