Merge pull request hardkernel#23 from drkhsh-wrk/khadas-vims-4.9.y

mm/readahead: Fix null pointer
Dangku · Jul 17, 2020 · 40178b4 · 40178b4
2 parents 4c96315 + b284914
commit 40178b4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mm/readahead.c b/mm/readahead.c
@@ -161,7 +161,7 @@ int __do_page_cache_readahead(struct address_space *mapping, struct file *filp,
 	gfp_t gfp_mask = readahead_gfp_mask(mapping);
 
 #ifdef CONFIG_AMLOGIC_CMA
-	if (filp->f_mode & (FMODE_WRITE | FMODE_WRITE_IOCTL))
+	if (filp && (filp->f_mode & (FMODE_WRITE | FMODE_WRITE_IOCTL)))
 		gfp_mask |= __GFP_WRITE;
 #endif /* CONFIG_AMLOGIC_CMA */