| Message ID | 1551785646-46173-2-git-send-email-wen.yang99@zte.com.cn (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2,01/15] ARM: actions: fix a leaked reference by adding missing of_node_put | expand |
On 3/5/2019 3:33 AM, Wen Yang wrote: > The call to of_get_next_child returns a node pointer with refcount > incremented thus it must be explicitly decremented after the last > usage. > > Detected by coccinelle with the following warnings: > ./arch/arm/mach-bcm/board_bcm281xx.c:43:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 35, but without a corresponding object release within this function. > > Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> > Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> > Cc: Florian Fainelli <f.fainelli@gmail.com> > Cc: Ray Jui <rjui@broadcom.com> > Cc: Scott Branden <sbranden@broadcom.com> > Cc: bcm-kernel-feedback-list@broadcom.com > Cc: Russell King <linux@armlinux.org.uk> > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kernel@vger.kernel.org > --- > v2->v1: add a missing space between "adding" and "missing" > > arch/arm/mach-bcm/board_bcm281xx.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/mach-bcm/board_bcm281xx.c b/arch/arm/mach-bcm/board_bcm281xx.c > index b81bb38..1238ac8 100644 > --- a/arch/arm/mach-bcm/board_bcm281xx.c > +++ b/arch/arm/mach-bcm/board_bcm281xx.c > @@ -38,6 +38,7 @@ static void bcm281xx_restart(enum reboot_mode mode, const char *cmd) > return; > } > base = of_iomap(np_wdog, 0); > + of_node_put(np_wdog); > if (!base) { > pr_emerg("Couldn't map brcm,kona-wdt\n"); > return; > Change looks good to me. Thanks! Acked-by: Ray Jui <ray.jui@broadcom.com>
On 3/5/19 9:24 AM, Ray Jui wrote: > > > On 3/5/2019 3:33 AM, Wen Yang wrote: >> The call to of_get_next_child returns a node pointer with refcount >> incremented thus it must be explicitly decremented after the last >> usage. >> >> Detected by coccinelle with the following warnings: >> ./arch/arm/mach-bcm/board_bcm281xx.c:43:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 35, but without a corresponding object release within this function. >> >> Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> >> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> >> Cc: Florian Fainelli <f.fainelli@gmail.com> >> Cc: Ray Jui <rjui@broadcom.com> >> Cc: Scott Branden <sbranden@broadcom.com> >> Cc: bcm-kernel-feedback-list@broadcom.com >> Cc: Russell King <linux@armlinux.org.uk> >> Cc: linux-arm-kernel@lists.infradead.org >> Cc: linux-kernel@vger.kernel.org >> --- >> v2->v1: add a missing space between "adding" and "missing" >> >> arch/arm/mach-bcm/board_bcm281xx.c | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/arch/arm/mach-bcm/board_bcm281xx.c b/arch/arm/mach-bcm/board_bcm281xx.c >> index b81bb38..1238ac8 100644 >> --- a/arch/arm/mach-bcm/board_bcm281xx.c >> +++ b/arch/arm/mach-bcm/board_bcm281xx.c >> @@ -38,6 +38,7 @@ static void bcm281xx_restart(enum reboot_mode mode, const char *cmd) >> return; >> } >> base = of_iomap(np_wdog, 0); >> + of_node_put(np_wdog); >> if (!base) { >> pr_emerg("Couldn't map brcm,kona-wdt\n"); >> return; >> > > Change looks good to me. Thanks! > > Acked-by: Ray Jui <ray.jui@broadcom.com> > Squashed this patch and "[PATCH 1/4] ARM: brcmstb: fix a leaked reference by adding missing of_node_put" into the same commit: https://github.com/Broadcom/stblinux/commit/ff98f8f6083a7f317463f538e9a21822e1128657 thanks Wen!
diff --git a/arch/arm/mach-bcm/board_bcm281xx.c b/arch/arm/mach-bcm/board_bcm281xx.c index b81bb38..1238ac8 100644 --- a/arch/arm/mach-bcm/board_bcm281xx.c +++ b/arch/arm/mach-bcm/board_bcm281xx.c @@ -38,6 +38,7 @@ static void bcm281xx_restart(enum reboot_mode mode, const char *cmd) return; } base = of_iomap(np_wdog, 0); + of_node_put(np_wdog); if (!base) { pr_emerg("Couldn't map brcm,kona-wdt\n"); return;