Subject: [merged] fs-proc-task_mmuc-check-the-return-value-of-mpol_to_str.patch removed from -mm tree To: gang.chen@xxxxxxxxxxx,andi@xxxxxxxxxxxxxx,gorcunov@xxxxxxxxx,mel@xxxxxxxxx,mm-commits@xxxxxxxxxxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Thu, 12 Sep 2013 12:48:33 -0700 The patch titled Subject: fs/proc/task_mmu.c: check the return value of mpol_to_str() has been removed from the -mm tree. Its filename was fs-proc-task_mmuc-check-the-return-value-of-mpol_to_str.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Chen Gang <gang.chen@xxxxxxxxxxx> Subject: fs/proc/task_mmu.c: check the return value of mpol_to_str() mpol_to_str() may fail, and not fill the buffer (e.g. -EINVAL), so need check about it, or buffer may not be zero based, and next seq_printf() will cause issue. The failure return need after mpol_cond_put() to match get_vma_policy(). Signed-off-by: Chen Gang <gang.chen@xxxxxxxxxxx> Cc: Cyrill Gorcunov <gorcunov@xxxxxxxxx> Cc: Mel Gorman <mel@xxxxxxxxx> Cc: Andi Kleen <andi@xxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/proc/task_mmu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff -puN fs/proc/task_mmu.c~fs-proc-task_mmuc-check-the-return-value-of-mpol_to_str fs/proc/task_mmu.c --- a/fs/proc/task_mmu.c~fs-proc-task_mmuc-check-the-return-value-of-mpol_to_str +++ a/fs/proc/task_mmu.c @@ -1402,8 +1402,10 @@ static int show_numa_map(struct seq_file walk.mm = mm; pol = get_vma_policy(task, vma, vma->vm_start); - mpol_to_str(buffer, sizeof(buffer), pol); + n = mpol_to_str(buffer, sizeof(buffer), pol); mpol_cond_put(pol); + if (n < 0) + return n; seq_printf(m, "%08lx %s", vma->vm_start, buffer); _ Patches currently in -mm which might be from gang.chen@xxxxxxxxxxx are origin.patch sh64-kernel-use-usp-instead-of-fn.patch sh64-kernel-remove-useless-variable-regs.patch include-linux-interrupth-add-dummy-irq_set_irq_wake-for-generic_hardirqs.patch h8300-kernel-timer-timer8c-add-missing-semicolon.patch mm-kconfig-add-mmu-dependency-for-migration.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html