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pxa2xx_spi: prevent panic case setup() fails

Browse source 
setup() may fail before ctldata is set, causing a kernel panic on
cleanup().

Signed-off-by: Daniel Ribeiro <[email protected]>
Signed-off-by: David Brownell <[email protected]>
Cc: Eric Miao <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Daniel Ribeiro 2009-05-12 13:19:36 -07:00 • committed by Linus Torvalds
commit 7348d82a67
1 changed files with 3 additions and 0 deletions
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3
drivers/spi/pxa2xx_spi.c
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@ -1373,6 +1373,9 @@ static void cleanup(struct spi_device *spi)
{
struct chip_data *chip = spi_get_ctldata(spi);
if (!chip)
return;
if (gpio_is_valid(chip->gpio_cs))
gpio_free(chip->gpio_cs);