[PATCH] spi: check platform_device_register_simple() error

Check the return value of platform_device_register_simple().

Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/spi/spi_butterfly.c b/drivers/spi/spi_butterfly.c
index c2f601f8e4f21df7106952a147c83c2e13626fca..312987a0321072aa2c9974c8b476ffc97416b7bb 100644 (file)
--- a/drivers/spi/spi_butterfly.c
+++ b/drivers/spi/spi_butterfly.c
@@ -251,6 +251,8 @@ static void butterfly_attach(struct parport *p)
         * setting up a platform device like this is an ugly kluge...
         */
        pdev = platform_device_register_simple("butterfly", -1, NULL, 0);
+       if (IS_ERR(pdev))
+               return;
 
        master = spi_alloc_master(&pdev->dev, sizeof *pp);
        if (!master) {