MIPS: APRP: Fix an issue when device_create() fails.

If a call to device_create() fails for a channel during the initialize
loop, we need to clean the devices entries already created before
leaving.

Signed-off-by: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com>
Cc: linux-mips@linux-mips.org
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: Qais Yousef <Qais.Yousef@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Cc: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Patchwork: https://patchwork.linux-mips.org/patch/7111/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2 files changed, 6 insertions, 0 deletions

diff --git a/arch/mips/kernel/rtlx-cmp.c b/arch/mips/kernel/rtlx-cmp.c
index 758fb3cd2326..d26dcc4b46e7 100644
--- a/arch/mips/kernel/rtlx-cmp.c
+++ b/arch/mips/kernel/rtlx-cmp.c
@@ -77,6 +77,9 @@ int __init rtlx_module_init(void)
                 dev = device_create(mt_class, NULL, MKDEV(major, i), NULL,
                                     "%s%d", RTLX_MODULE_NAME, i);
                 if (IS_ERR(dev)) {
+                        while (i--)
+                                device_destroy(mt_class, MKDEV(major, i));
+
                         err = PTR_ERR(dev);
                         goto out_chrdev;
                 }
diff --git a/arch/mips/kernel/rtlx-mt.c b/arch/mips/kernel/rtlx-mt.c
index 5a66b975989e..cb95470e2e69 100644
--- a/arch/mips/kernel/rtlx-mt.c
+++ b/arch/mips/kernel/rtlx-mt.c
@@ -103,6 +103,9 @@ int __init rtlx_module_init(void)
                 dev = device_create(mt_class, NULL, MKDEV(major, i), NULL,
                                     "%s%d", RTLX_MODULE_NAME, i);
                 if (IS_ERR(dev)) {
+                        while (i--)
+                                device_destroy(mt_class, MKDEV(major, i));
+
                         err = PTR_ERR(dev);
                         goto out_chrdev;
                 }