This is a note to let you know that I've just added the patch titled
ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure
to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: arm-omap2-gpmc-onenand-propagate-error-on-initialization-failure.patch and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Tue Dec 12 13:38:50 CET 2017
From: Ladislav Michl ladis@linux-mips.org Date: Sat, 11 Feb 2017 14:02:49 +0100 Subject: ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure
From: Ladislav Michl ladis@linux-mips.org
[ Upstream commit 7807e086a2d1f69cc1a57958cac04fea79fc2112 ]
gpmc_probe_onenand_child returns success even on gpmc_onenand_init failure. Fix that.
Signed-off-by: Ladislav Michl ladis@linux-mips.org Acked-by: Roger Quadros rogerq@ti.com Signed-off-by: Tony Lindgren tony@atomide.com Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mach-omap2/gpmc-onenand.c | 10 ++++++---- drivers/memory/omap-gpmc.c | 4 +--- include/linux/omap-gpmc.h | 5 +++-- 3 files changed, 10 insertions(+), 9 deletions(-)
--- a/arch/arm/mach-omap2/gpmc-onenand.c +++ b/arch/arm/mach-omap2/gpmc-onenand.c @@ -367,7 +367,7 @@ static int gpmc_onenand_setup(void __iom return ret; }
-void gpmc_onenand_init(struct omap_onenand_platform_data *_onenand_data) +int gpmc_onenand_init(struct omap_onenand_platform_data *_onenand_data) { int err; struct device *dev = &gpmc_onenand_device.dev; @@ -393,15 +393,17 @@ void gpmc_onenand_init(struct omap_onena if (err < 0) { dev_err(dev, "Cannot request GPMC CS %d, error %d\n", gpmc_onenand_data->cs, err); - return; + return err; }
gpmc_onenand_resource.end = gpmc_onenand_resource.start + ONENAND_IO_SIZE - 1;
- if (platform_device_register(&gpmc_onenand_device) < 0) { + err = platform_device_register(&gpmc_onenand_device); + if (err) { dev_err(dev, "Unable to register OneNAND device\n"); gpmc_cs_free(gpmc_onenand_data->cs); - return; } + + return err; } --- a/drivers/memory/omap-gpmc.c +++ b/drivers/memory/omap-gpmc.c @@ -1890,9 +1890,7 @@ static int gpmc_probe_onenand_child(stru if (!of_property_read_u32(child, "dma-channel", &val)) gpmc_onenand_data->dma_channel = val;
- gpmc_onenand_init(gpmc_onenand_data); - - return 0; + return gpmc_onenand_init(gpmc_onenand_data); } #else static int gpmc_probe_onenand_child(struct platform_device *pdev, --- a/include/linux/omap-gpmc.h +++ b/include/linux/omap-gpmc.h @@ -191,10 +191,11 @@ static inline int gpmc_nand_init(struct #endif
#if IS_ENABLED(CONFIG_MTD_ONENAND_OMAP2) -extern void gpmc_onenand_init(struct omap_onenand_platform_data *d); +extern int gpmc_onenand_init(struct omap_onenand_platform_data *d); #else #define board_onenand_data NULL -static inline void gpmc_onenand_init(struct omap_onenand_platform_data *d) +static inline int gpmc_onenand_init(struct omap_onenand_platform_data *d) { + return 0; } #endif
Patches currently in stable-queue which might be from ladis@linux-mips.org are
queue-4.4/arm-omap2-gpmc-onenand-propagate-error-on-initialization-failure.patch