On 3/29/18 1:29 PM, Timur Tabi wrote:
If the main loop in linehandle_create() encounters an error, it unwinds completely by freeing all previously requested GPIO descriptors. However, if the error occurs in the beginning of the loop before that GPIO is requested, then the exit code attempts to free a null descriptor. If extrachecks is enabled, gpiod_free() triggers a WARN_ON. Instead, keep a separate count of legitimate GPIOs so that only those are freed.
Linus, this is an important fix that's needed for sparse GPIO support. Any chance that it can make 4.17?
Also, my other patchset for qdf2xxx support has been reviewed by Bjorn and Stephen. Can you add that to 4.17 also?
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