+ dev-kmsg-properly-support-writev-to-avoid-interleaved-printk-lines-fix.patch added to -mm tree

+ dev-kmsg-properly-support-writev-to-avoid-interleaved-printk-lines-fix.patch added to -mm tree

[akpm]

The patch titled
     dev-kmsg-properly-support-writev-to-avoid-interleaved-printk-lines-fix
has been added to the -mm tree.  Its filename is
     dev-kmsg-properly-support-writev-to-avoid-interleaved-printk-lines-fix.patch

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*** Remember to use Documentation/SubmitChecklist when testing your code ***

See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this

The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
Subject: dev-kmsg-properly-support-writev-to-avoid-interleaved-printk-lines-fix
From: Andrew Morton <akpm@linux-foundation.org>

make `len' size_t, avoid multiple-assignments.

Cc: Greg KH <gregkh@suse.de>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Lennart Poettering <lennart@poettering.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/char/mem.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff -puN drivers/char/mem.c~dev-kmsg-properly-support-writev-to-avoid-interleaved-printk-lines-fix drivers/char/mem.c
--- a/drivers/char/mem.c~dev-kmsg-properly-support-writev-to-avoid-interleaved-printk-lines-fix
+++ a/drivers/char/mem.c
@@ -810,11 +810,11 @@ static ssize_t kmsg_writev(struct kiocb 
 			   unsigned long count, loff_t pos)
 {
 	char *line, *p;
-	int len, i;
+	int i;
 	ssize_t ret = -EFAULT;
+	size_t len = iov_length(iv, count);
 
-	len = iov_length(iv, count);
-	line = p = kmalloc(len + 1, GFP_KERNEL);
+	line = kmalloc(len + 1, GFP_KERNEL);
 	if (line == NULL)
 		return -ENOMEM;
 
@@ -822,6 +822,7 @@ static ssize_t kmsg_writev(struct kiocb 
 	 * copy all vectors into a single string, to ensure we do
 	 * not interleave our log line with other printk calls
 	 */
+	p = line;
 	for (i = 0; i < count; i++) {
 		if (copy_from_user(p, iv[i].iov_base, iv[i].iov_len))
 			goto out;
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

linux-next.patch
next-remove-localversion.patch
i-need-old-gcc.patch
arch-alpha-kernel-systblss-remove-debug-check.patch
drivers-i2c-busses-i2c-designware-corec-needs-delayh.patch
fs-partitions-ldmc-fix-oops-caused-by-corrupted-partition-table-checkpatch-fixes.patch
mm-add-vm-counters-for-transparent-hugepages.patch
drivers-scsi-mpt2sas-mpt2sas_ctlc-fix-unbounded-copy_to_user.patch
arch-x86-include-asm-delayh-fix-udelay-and-ndelay-for-8-bit-args.patch
drivers-gpu-drm-radeon-atomc-fix-warning.patch
leds-route-kbd-leds-through-the-generic-leds-layer.patch
backlight-add-backlight-type-fix.patch
backlight-add-backlight-type-fix-fix.patch
drivers-video-backlight-adp5520_blc-check-strict_strtoul-return-value-fix.patch
drivers-message-fusion-mptsasc-fix-warning.patch
osst-wrong-index-used-in-inner-loop-checkpatch-fixes.patch
drbd-fix-warning.patch
mm.patch
mm-nommu-sort-mm-mmap-list-properly-fix.patch
mm-per-node-vmstat-show-proper-vmstats-fix.patch
frv-duplicate-output_buffer-of-e03-checkpatch-fixes.patch
hpet-factor-timer-allocate-from-open.patch
arch-alpha-include-asm-ioh-s-extern-inline-static-inline.patch
init-calibratec-fix-for-critical-bogomips-intermittent-calculation-failure-checkpatch-fixes.patch
init-calibratec-fix-for-critical-bogomips-intermittent-calculation-failure-fix.patch
lru_cache-use-correct-type-in-sizeof-for-allocation-fix.patch
lib-genpoolc-document-return-values-fix-gen_pool_add_virt-return-value.patch
lib-hexdumpc-make-hex2bin-return-the-updated-src-address.patch
fs-binfmt_miscc-use-kernels-hex_to_bin-method-fix.patch
fs-binfmt_miscc-use-kernels-hex_to_bin-method-fix-fix.patch
fs-ncpfs-inodec-suppress-used-uninitialised-warning.patch
drivers-tty-vt-vt_ioctlc-repair-insane-expression.patch
drivers-rtc-rtc-mrstc-use-release_mem_region-after-request_mem_region-fix.patch
rtc-driver-for-pt7c4338-chip-checkpatch-fixes.patch
rtc-driver-for-pt7c4338-chip-fix.patch
mm-move-enum-vm_event_item-into-a-standalone-header-file.patch
add-the-pagefault-count-into-memcg-stats-fix.patch
dev-kmsg-properly-support-writev-to-avoid-interleaved-printk-lines-fix.patch
fs-partitions-efic-corrupted-guid-partition-tables-can-cause-kernel-oops-fix.patch
scatterlist-new-helper-functions.patch
scatterlist-new-helper-functions-update-fix.patch
kexec-remove-kmsg_dump_kexec-fix.patch
journal_add_journal_head-debug.patch
mutex-subsystem-synchro-test-module-fix.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
memblock-add-input-size-checking-to-memblock_find_region.patch
memblock-add-input-size-checking-to-memblock_find_region-fix.patch