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Date:	Wed, 18 Jun 2014 18:12:44 +0200
From:	Philippe De Muyter <>
Cc:	Philippe De Muyter <>,
	Andrew Morton <>
Subject: [PATCH] init/do_mounts.c: treat EROFS like EACCES

some combinations of filesystem and block device (at least vfat on mmc)
yield -EROFS instead of -EACCES when the device is read-only.  Retry
mounting with MS_RDONLY set, just like for the EACCES case, instead of
failing directly.

Signed-off-by: Philippe De Muyter <>
Cc: Andrew Morton <>
 init/do_mounts.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/init/do_mounts.c b/init/do_mounts.c
index 82f2288..af7b9b8 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -394,6 +394,7 @@ retry:
 			case 0:
 				goto out;
 			case -EACCES:
+			case -EROFS:
 				flags |= MS_RDONLY;
 				goto retry;
 			case -EINVAL:

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