err.h: add __must_check to error pointer handlers
Add __must_check to error pointer handlers to have the compiler warn about mistakes like: if (err) ERR_PTR(err); It found two bugs: Mar 12 Nikula Jani [PATCH] enclosure: fix error path - actually return ERR_PTR() on error Mar 12 Nikula Jani [PATCH] sunrpc: fix error path - actually return ERR_PTR() on error Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com> Cc: Phil Carmody <ext-phil.2.carmody@nokia.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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