Split IS_ERR_OR_NULL() check followed by additional conditional
to two simple conditionals. This increases readability and saves memory:
Function old new delta
dma_request_chan 700 697 -3
Total: Before=10224, After=10221, chg -0.03%
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200828144519.14483-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
}
mutex_unlock(&dma_list_mutex);
- if (IS_ERR_OR_NULL(chan))
- return chan ? chan : ERR_PTR(-EPROBE_DEFER);
+ if (IS_ERR(chan))
+ return chan;
+ if (!chan)
+ return ERR_PTR(-EPROBE_DEFER);
found:
#ifdef CONFIG_DEBUG_FS