i2c: i2c-boardinfo: fix memory leaks on devinfo

[ Upstream commit 66a7c84d677e8e4a5a2ef4afdb9bd52e1399a866 ]

Currently when an error occurs devinfo is still allocated but is
unused when the error exit paths break out of the for-loop. Fix
this by kfree'ing devinfo to avoid the leak.

Detected by CoverityScan, CID#1416590 ("Resource Leak")

Fixes: 4124c4eba402 ("i2c: allow attaching IRQ resources to i2c_board_info")
Fixes: 0daaf99d8424 ("i2c: copy device properties when using i2c_register_board_info()")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/i2c/i2c-boardinfo.c b/drivers/i2c/i2c-boardinfo.c
index 31186ea..509a600 100644 (file)
--- a/drivers/i2c/i2c-boardinfo.c
+++ b/drivers/i2c/i2c-boardinfo.c
@@ -86,6 +86,7 @@ int i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsig
                                        property_entries_dup(info->properties);
                        if (IS_ERR(devinfo->board_info.properties)) {
                                status = PTR_ERR(devinfo->board_info.properties);
+                               kfree(devinfo);
                                break;
                        }
                }
@@ -98,6 +99,7 @@ int i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsig
                                        GFP_KERNEL);
                        if (!devinfo->board_info.resources) {
                                status = -ENOMEM;
+                               kfree(devinfo);
                                break;
                        }
                }