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mdev: fix non-working device deletion, add a test for that

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-08-16 14:26:15 +02:00
parent 867ffb9616
commit f2860bf6d3
2 changed files with 13 additions and 2 deletions
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10
testsuite/mdev.tests
View File

@ -37,6 +37,16 @@ brw-rw---- 1 0 0 8,0 sda
"" ""
SKIP=
# continuing to use directory structure from prev test
optional STATIC FEATURE_MDEV_CONF FEATURE_LS_TIMESTAMPS FEATURE_LS_USERNAME
testing "mdev deletes /block/sda" \
"env - PATH=$PATH ACTION=remove DEVPATH=/block/sda chroot mdev.testdir /mdev 2>&1;
ls -ln mdev.testdir/dev | $FILTER_LS" \
"\
" \
"" ""
SKIP=
# continuing to use directory structure from prev test
rm -rf mdev.testdir/dev/*
echo ".* 1:1 666" >mdev.testdir/etc/mdev.conf

5
util-linux/mdev.c
View File

@ -132,6 +132,7 @@ static void make_device(char *path, int delete)
major = -1;
}
}
/* else: for delete, -1 still deletes the node, but < -1 suppresses that */
/* Determine device name, type, major and minor */
device_name = (char*) bb_basename(path);
@ -279,7 +280,7 @@ static void make_device(char *path, int delete)
if (aliaslink == '!' && s == a+1) {
val = st;
/* "!": suppress node creation/deletion */
major = -1;
major = -2;
}
else if (aliaslink == '>' || aliaslink == '=') {
val = st;
@ -379,7 +380,7 @@ static void make_device(char *path, int delete)
free(command);
}
if (delete && major >= 0) {
if (delete && major >= -1) {
if (ENABLE_FEATURE_MDEV_RENAME && alias) {
if (aliaslink == '>')
unlink(device_name);