3.2-stable review patch. If anyone has any objections, please let me know.
------------------ From: Boaz Harrosh <bharr...@panasas.com> commit 6abe4a87f7bc7978705c386dbba0ca0c7790b3ec upstream. If at exofs_fill_super() we had an early termination do to any error, like an IO error while reading the super-block. We would crash inside exofs_free_sbi(). This is because sbi->oc.numdevs was set to 1, before we actually have a device table at all. Fix it by moving the sbi->oc.numdevs = 1 to after the allocation of the device table. Reported-by: Johannes Schild <jsch...@gmx.de> Stable: This is a bug since v3.2.0 Signed-off-by: Boaz Harrosh <bharr...@panasas.com> Signed-off-by: Ben Hutchings <b...@decadent.org.uk> --- fs/exofs/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/exofs/super.c b/fs/exofs/super.c index 735ca06..59e0849 100644 --- a/fs/exofs/super.c +++ b/fs/exofs/super.c @@ -745,7 +745,6 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent) sbi->one_comp.obj.partition = opts->pid; sbi->one_comp.obj.id = 0; exofs_make_credential(sbi->one_comp.cred, &sbi->one_comp.obj); - sbi->oc.numdevs = 1; sbi->oc.single_comp = EC_SINGLE_COMP; sbi->oc.comps = &sbi->one_comp; @@ -804,6 +803,7 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent) goto free_sbi; ore_comp_set_dev(&sbi->oc, 0, od); + sbi->oc.numdevs = 1; } __sbi_read_stats(sbi); -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html