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Change History

In the Linux kernel, the following vulnerability has been resolved:

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.

https://git.kernel.org/stable/c/741a951f41929f39cae70c66d86d0754d3129d0a

https://git.kernel.org/stable/c/dce6d8f985fa1ef5c2af47f4f86ea65511b78656