The patch titled err.h: add helper function to simplify pointer error checking has been removed from the -mm tree. Its filename was errh-add-helper-function-to-simplify-pointer-error-checking.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: err.h: add helper function to simplify pointer error checking From: Phil Carmody <ext-phil.2.carmody@xxxxxxxxx> There are quite a few instances in the kernel of checks of pointers both against NULL and against the errno range, handling both cases identically. This additional helper function would simplify such code. [akpm@xxxxxxxxxxxxxxxxxxxx: build fix] Signed-off-by: Phil Carmody <ext-phil.2.carmody@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/err.h | 5 +++++ 1 file changed, 5 insertions(+) diff -puN include/linux/err.h~errh-add-helper-function-to-simplify-pointer-error-checking include/linux/err.h --- a/include/linux/err.h~errh-add-helper-function-to-simplify-pointer-error-checking +++ a/include/linux/err.h @@ -34,6 +34,11 @@ static inline long IS_ERR(const void *pt return IS_ERR_VALUE((unsigned long)ptr); } +static inline long IS_ERR_OR_NULL(const void *ptr) +{ + return !ptr || IS_ERR_VALUE((unsigned long)ptr); +} + /** * ERR_CAST - Explicitly cast an error-valued pointer to another pointer type * @ptr: The pointer to cast. _ Patches currently in -mm which might be from ext-phil.2.carmody@xxxxxxxxx are origin.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html