From: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
To: spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Cc: Mark Brown
<broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>,
Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
Subject: [PATCH 1/4] spi/mpc52xx: Fix error handling in probe function
Date: Sat, 18 Aug 2012 09:29:21 -0700 [thread overview]
Message-ID: <1345307364-4914-1-git-send-email-linux@roeck-us.net> (raw)
The call to spi_master_put() is needed to free device memory. It must be called
after spi_alloc_master, and must only be called after the device memory is no
longer used.
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
drivers/spi/spi-mpc52xx.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-mpc52xx.c b/drivers/spi/spi-mpc52xx.c
index cb3a383..a749589 100644
--- a/drivers/spi/spi-mpc52xx.c
+++ b/drivers/spi/spi-mpc52xx.c
@@ -454,7 +454,7 @@ static int __devinit mpc52xx_spi_probe(struct platform_device *op)
GFP_KERNEL);
if (!ms->gpio_cs) {
rc = -ENOMEM;
- goto err_alloc;
+ goto err_alloc_gpio;
}
for (i = 0; i < ms->gpio_cs_count; i++) {
@@ -514,12 +514,13 @@ static int __devinit mpc52xx_spi_probe(struct platform_device *op)
err_register:
dev_err(&ms->master->dev, "initialization failed\n");
- spi_master_put(master);
err_gpio:
while (i-- > 0)
gpio_free(ms->gpio_cs[i]);
kfree(ms->gpio_cs);
+ err_alloc_gpio:
+ spi_master_put(master);
err_alloc:
err_init:
iounmap(regs);
--
1.7.9.7
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next reply other threads:[~2012-08-18 16:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-18 16:29 Guenter Roeck [this message]
[not found] ` <1345307364-4914-1-git-send-email-linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
2012-08-18 16:29 ` [PATCH 2/4] spi/mpc52xx: Fix device remove function Guenter Roeck
2012-08-18 16:29 ` [PATCH 3/4] spi/mpc52xx-psc: Avoid access to freed memory in " Guenter Roeck
2012-08-18 16:29 ` [PATCH 4/4] spi/mpc512x-psc: " Guenter Roeck
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