ASoC: mxs: Fix error handling in mxs_sgtl5000_probe

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: mxs: Fix error handling in mxs_sgtl5000_probe This function only calls of_node_put() in the regular path. And it will cause refcount leak in error paths. For example, when codec_np is NULL, saif_np[0] and saif_np[1] are not NULL, it will cause leaks. of_node_put() will check if the node pointer is NULL, so we can call it directly to release the refcount of regular pointers.

References

• https://git.kernel.org/stable/c/f16ad2c0e22687f80e5981c67374023f51c204b9
• https://git.kernel.org/stable/c/790d2628e3fcc819d8f5572eb5615113fb2e727a
• https://git.kernel.org/stable/c/f8d38056bcd220ea6f0802a5586d1a12ebcce849
• https://git.kernel.org/stable/c/67e12f1cb2f97468c12b59e21975eaa0f332e7d2
• https://git.kernel.org/stable/c/86b6cf989437e694fd0a15782b5a513853a739e0
• https://git.kernel.org/stable/c/44acdaf7acb60054d872bed18ce0e7db8ce900ce
• https://git.kernel.org/stable/c/d2923b48d99fe663cb93d8b481c93299fcd68656
• https://git.kernel.org/stable/c/8d880226c86f37624e2a5f3c6d92ac0ec3375f96
• https://git.kernel.org/stable/c/6ae0a4d8fec551ec581d620f0eb1fe31f755551c