agp/ati: Return error from ati_create_page_map()
Fix the compiler warning drivers/char/agp/ati-agp.c: In function 'ati_create_page_map': drivers/char/agp/ati-agp.c:58:16: warning: variable 'err' set but not used [-Wunused-but-set-variable] 58 | int i, err = 0; by returing the error to the caller. v2: * free page in error branch (Helge) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Helge Deller <deller@gmx.de> Link: https://patchwork.freedesktop.org/patch/msgid/20211201114645.15384-5-tzimmermann@suse.de
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