linux-kernel - [PATCH] Propagate errors from find in scripts/gen_initramfs

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Message-Id: <20070430053440.8BC3FDDF7A@ozlabs.org>
Date:	Mon, 30 Apr 2007 15:34:15 +1000
From:	Michael Ellerman <michael@...erman.id.au>
To:	Andrew Morton <akpm@...l.org>
CC:	<azarah@...feratu.za.org>, <sam@...nborg.org>,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH] Propagate errors from find in scripts/gen_initramfs_list.sh

If the find(1) in scripts/gen_initramfs_list.sh generates any errors, it
will cause gen_initramfs_list.sh to fail (because of "set -e"), however
the errors from find are not printed to the user. This is rather confusing:

~/src/powerpc$ make O=~/build/powerpc-cell32/
make[2]: *** [usr/initramfs_data.cpio.gz] Error 1
make[1]: *** [usr] Error 2
make[1]: *** Waiting for unfinished jobs....
make[1]: *** wait: No child processes.  Stop.
make: *** [_all] Error 2

It is much easier to work out what the problem is if we let the errors
from find hit the console, eg:

~/src/powerpc$ make O=~/build/powerpc-cell32/
find: /home/michael/initramfs-source/home: Permission denied
find: /home/michael/initramfs-source/lost+found: Permission denied
find: /home/michael/initramfs-source/opt: Permission denied
find: /home/michael/initramfs-source/root: Permission denied
make[2]: *** [usr/initramfs_data.cpio.gz] Error 1
make[1]: *** [usr] Error 2
make[1]: *** Waiting for unfinished jobs....
make[1]: *** wait: No child processes.  Stop.
make: *** [_all] Error 2

Signed-off-by: Michael Ellerman <michael@...erman.id.au>
---

 scripts/gen_initramfs_list.sh |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: powerpc/scripts/gen_initramfs_list.sh
===================================================================
--- powerpc.orig/scripts/gen_initramfs_list.sh
+++ powerpc/scripts/gen_initramfs_list.sh
@@ -171,7 +171,7 @@ dir_filelist() {
 	${dep_list}header "$1"

 	srcdir=$(echo "$1" | sed -e 's://*:/:g')
-	dirlist=$(find "${srcdir}" -printf "%p %m %U %G\n" 2>/dev/null)
+	dirlist=$(find "${srcdir}" -printf "%p %m %U %G\n")

 	# If $dirlist is only one line, then the directory is empty
 	if [  "$(echo "${dirlist}" | wc -l)" -gt 1 ]; then
-
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