mtd: nandsim: remove debugfs entries in error path

debian/changelog

@@ -135,6 +135,9 @@ linux (4.12.9-1) UNRELEASED; urgency=medium
   * [armel] Disable CONFIG_STRICT_KERNEL_RWX, which will save about 3MB
     on linux Image (before compression). (Closes: #870185)
 
+  [ Uwe Kleine-König ]
+  * mtd: nandsim: remove debugfs entries in error path
+
  -- Ben Hutchings <ben@decadent.org.uk>  Mon, 14 Aug 2017 19:47:30 +0100
 
 linux (4.12.6-1) unstable; urgency=medium

debian/patches/bugfix/all/mtd-nandsim-remove-debugfs-entries-in-error-path.patch

@@ -0,0 +1,34 @@
+From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
+Date: Wed, 23 Aug 2017 09:03:04 +0200
+Subject: [PATCH] mtd: nandsim: remove debugfs entries in error path
+Origin: https://git.kernel.org/linus/b974696da1cfc5aa0c29ed97dc8f6c239899e64b
+
+The debugfs entries must be removed before an error is returned in the
+probe function. Otherwise another try to load the module fails and when
+the debugfs files are accessed without the module loaded, the kernel
+still tries to call a function in that module.
+
+Fixes: 5346c27c5fed ("mtd: nandsim: Introduce debugfs infrastructure")
+Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
+Reviewed-by: Richard Weinberger <richard@nod.at>
+Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
+Signed-off-by: Brian Norris <computersforpeace@gmail.com>
+---
+ drivers/mtd/nand/nandsim.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
+index 03a0d057bf2f..e4211c3cc49b 100644
+--- a/drivers/mtd/nand/nandsim.c
++++ b/drivers/mtd/nand/nandsim.c
+@@ -2373,6 +2373,7 @@ static int __init ns_init_module(void)
+         return 0;
+ 
+ err_exit:
++	nandsim_debugfs_remove(nand);
+ 	free_nandsim(nand);
+ 	nand_release(nsmtd);
+ 	for (i = 0;i < ARRAY_SIZE(nand->partitions); ++i)
+-- 
+2.14.1
+

debian/patches/series

@@ -85,6 +85,7 @@ bugfix/all/kbuild-include-addtree-remove-quotes-before-matching-path.patch
 bugfix/all/rtlwifi-fix-memory-leak-when-firmware-request-fails.patch
 bugfix/all/rtlwifi-fix-fallback-firmware-loading.patch
 bugfix/all/bfq-re-enable-auto-loading-when-built-as-a-module.patch
+bugfix/all/mtd-nandsim-remove-debugfs-entries-in-error-path.patch
 
 # Miscellaneous features