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-rw-r--r--fs/char_dev.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/char_dev.c b/fs/char_dev.c
index 24b142569..687471dc0 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -91,6 +91,10 @@ __register_chrdev_region(unsigned int major, unsigned int baseminor,
break;
}
+ if (i < CHRDEV_MAJOR_DYN_END)
+ pr_warn("CHRDEV \"%s\" major number %d goes below the dynamic allocation range",
+ name, i);
+
if (i == 0) {
ret = -EBUSY;
goto out;