remoteproc: imx_dsp_rproc: Improve exception handling in imx_dsp_rproc_mbox_alloc()

The label “err_out” was used to jump to another pointer check
despite of the detail in the implementation of the function
“imx_dsp_rproc_mbox_alloc” that it was determined already
that the corresponding variable contained an error pointer
because of a failed call of the function “mbox_request_channel_byname”.

Thus perform the following adjustments:

1. Return directly after a call of the function
   “mbox_request_channel_byname” failed for the input parameter “tx”.

2. Use more appropriate labels instead.

3. Reorder jump targets at the end.

4. Omit a function call and three extra checks.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mathieu Poirier <[email protected]>

0 files changed, 0 insertions, 0 deletions