From cd3a95f342459e574d01511322c8a3a22784fec1 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sat, 28 Jan 2012 13:52:37 +0000 Subject: [PATCH] switch: fix some memory leaks in switch_parse_vlan() SVN-Revision: 29936 --- package/switch/src/switch-adm.c | 1 + package/switch/src/switch-core.c | 8 +++++--- package/switch/src/switch-robo.c | 6 ++---- 3 files changed, 8 insertions(+), 7 deletions(-) diff --git a/package/switch/src/switch-adm.c b/package/switch/src/switch-adm.c index 2aff14207b..3826ca57f8 100644 --- a/package/switch/src/switch-adm.c +++ b/package/switch/src/switch-adm.c @@ -341,6 +341,7 @@ static int handle_vlan_port_write(void *driver, char *buf, int nr) } adm_wreg(0x13 + nr, (__u16) ports); + kfree(c); return 0; } diff --git a/package/switch/src/switch-core.c b/package/switch/src/switch-core.c index f5b248aadb..79b4e93f03 100644 --- a/package/switch/src/switch-core.c +++ b/package/switch/src/switch-core.c @@ -341,10 +341,9 @@ switch_vlan_config *switch_parse_vlan(switch_driver *driver, char *buf) switch_vlan_config *c; int j, u, p, s; - c = kmalloc(sizeof(switch_vlan_config), GFP_KERNEL); + c = kzalloc(sizeof(switch_vlan_config), GFP_KERNEL); if (!c) return NULL; - memset(c, 0, sizeof(switch_vlan_config)); while (isspace(*buf)) buf++; j = 0; @@ -382,7 +381,10 @@ switch_vlan_config *switch_parse_vlan(switch_driver *driver, char *buf) while (isspace(*buf)) buf++; } - if (*buf != 0) return NULL; + if (*buf != 0) { + kfree(c); + return NULL; + } c->port &= (1 << driver->ports) - 1; c->untag &= (1 << driver->ports) - 1; diff --git a/package/switch/src/switch-robo.c b/package/switch/src/switch-robo.c index ec9e337337..7bac91942a 100644 --- a/package/switch/src/switch-robo.c +++ b/package/switch/src/switch-robo.c @@ -459,6 +459,7 @@ static int handle_vlan_port_write(void *driver, char *buf, int nr) robo_write32(ROBO_ARLIO_PAGE, 0x63 + regoff, (c->untag << 9) | c->port); robo_write16(ROBO_ARLIO_PAGE, 0x61 + regoff, nr); robo_write16(ROBO_ARLIO_PAGE, 0x60 + regoff, 1 << 7); + kfree(c); return 0; } @@ -473,6 +474,7 @@ static int handle_vlan_port_write(void *driver, char *buf, int nr) robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16); } + kfree(c); return 0; } @@ -520,13 +522,9 @@ static int handle_enable_vlan_write(void *driver, char *buf, int nr) static int handle_reset(void *driver, char *buf, int nr) { switch_driver *d = (switch_driver *) driver; - switch_vlan_config *c = switch_parse_vlan(d, buf); int j; __u16 val16; - if (c == NULL) - return -EINVAL; - /* disable switching */ set_switch(0); -- 2.30.2