[PATCH] ARM: bootm: Fix free_mem calculation when initrd is given
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: 2016-10-18 07:50:30
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: 2016-10-18 07:50:30
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
When a initrd is given we calculate the next free memory position as: free_mem = PAGE_ALIGN(initrd_end); This is wrong when initrd_end exactly falls on a page boundary. In this case PAGE_ALIGN() does nothing and free_mem becomes initrd_end and the following bootm_load_devicetree() and thus booting fails with -ENOMEM. Fix this by correctly advancing to the next free memory position. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- arch/arm/lib/bootm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c
index 56663fe..9f3d950 100644
--- a/arch/arm/lib/bootm.c
+++ b/arch/arm/lib/bootm.c@@ -158,7 +158,7 @@ static int __do_bootm_linux(struct image_data *data, unsigned long free_mem, int initrd_start = data->initrd_res->start; initrd_end = data->initrd_res->end; initrd_size = resource_size(data->initrd_res); - free_mem = PAGE_ALIGN(initrd_end); + free_mem = PAGE_ALIGN(initrd_end + 1); } ret = bootm_load_devicetree(data, free_mem);
--
2.9.3
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