Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [PATCH] s5p-mfc: Don't try to put pm->clock if lookup failed | Date | Mon, 02 May 2016 20:41:11 +0200 |
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On Monday 02 May 2016 13:27:54 Javier Martinez Canillas wrote: > Failing to get the struct s5p_mfc_pm .clock is a non-fatal error so the > clock field can have a errno pointer value. But s5p_mfc_final_pm() only > checks if .clock is not NULL before attempting to unprepare and put it. > > This leads to the following warning in clk_put() due s5p_mfc_final_pm(): >
Better assign the pointer to NULL in case of a non-fatal error return code. That way, the reader doesn't have to wonder why you have the IS_ERR_OR_NULL() check here.
Arnd
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