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authorLinux Build Service Account <lnxbuild@localhost>2019-06-30 03:26:38 -0700
committerLinux Build Service Account <lnxbuild@localhost>2019-06-30 03:26:38 -0700
commitf6f18bf58a688e45e149708a00659bd1010ef94c (patch)
treeaea1549c4c8f28ad359a92b7702481b2cb369d20 /fs/char_dev.c
parentc9d92a953ba0dffba643376ec463754a88db107a (diff)
parent17c66e9e49a181498ae3c75809c98fdbe630de28 (diff)
Merge 17c66e9e49a181498ae3c75809c98fdbe630de28 on remote branch
Change-Id: I49238aefe09bba152a8000c046959157c328f183
Diffstat (limited to 'fs/char_dev.c')
-rw-r--r--fs/char_dev.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/char_dev.c b/fs/char_dev.c
index 24b142569ca9..d0655ca89481 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -130,6 +130,12 @@ __register_chrdev_region(unsigned int major, unsigned int baseminor,
ret = -EBUSY;
goto out;
}
+
+ if (new_min < old_min && new_max > old_max) {
+ ret = -EBUSY;
+ goto out;
+ }
+
}
cd->next = *cp;