Tomeu Vizoso e984a1791a memory: omap-gpmc: Don't try to save uninitialized GPMC context ... If for some reason the GPMC device hasn't been probed yet, gpmc_base is going to be NULL. Because there's no context yet to be saved, just turn these functions into no-ops until that device gets probed. Unable to handle kernel NULL pointer dereference at virtual address 00000010 pgd = c0204000 [00000010] *pgd=00000000 Internal error: Oops: 5 [#1] SMP ARM Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.2.0-rc5-next-20150804-05947-g23f38fe8eda9 #1 Hardware name: Generic OMAP3-GP (Flattened Device Tree) task: c0e623e8 ti: c0e5c000 task.ti: c0e5c000 PC is at omap3_gpmc_save_context+0x8/0xc4 LR is at omap_sram_idle+0x154/0x23c pc : [<c087c7ac>] lr : [<c023262c>] psr: 60000193 sp : c0e5df40 ip : c0f92a80 fp : c0999eb0 r10: c0e57364 r9 : c0e66f14 r8 : 00000003 r7 : 00000000 r6 : 00000003 r5 : 00000000 r4 : c0f5f174 r3 : c0fa4fe8 r2 : 00000000 r1 : 00000000 r0 : fa200280 Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c5387d Table: 80204019 DAC: 00000015 Process swapper/0 (pid: 0, stack limit = 0xc0e5c220) Stack: (0xc0e5df40 to 0xc0e5e000) df40: 00000000 c0e66ef8 c0f5f1a4 00000000 00000003 c02333a4 c3813822 00000000 df60: 00000000 c0e5a5c8 cfb8a5d0 c07f0c44 0e4f1d7e 00000000 00000000 00000000 df80: c3813822 00000000 cfb8a5d0 c0e5e4e4 cfb8a5d0 c0e66f14 c0e5a5c8 c0e5e54c dfa0: c0e5e544 c0e57364 c0999eb0 c0277758 000000fa c0f5d000 00000000 c0d61c18 dfc0: ffffffff ffffffff 00000000 c0d61674 00000000 c0df7a48 00000000 c0f5d5d4 dfe0: c0e5e4c0 c0df7a44 c0e634f8 80204059 00000000 8020807c 00000000 00000000 [<c087c7ac>] (omap3_gpmc_save_context) from [<c023262c>] (omap_sram_idle+0x154/0x23c) [<c023262c>] (omap_sram_idle) from [<c02333a4>] (omap3_enter_idle_bm+0xec/0x1a8) [<c02333a4>] (omap3_enter_idle_bm) from [<c07f0c44>] (cpuidle_enter_state+0xbc/0x284) [<c07f0c44>] (cpuidle_enter_state) from [<c0277758>] (cpu_startup_entry+0x174/0x24c) [<c0277758>] (cpu_startup_entry) from [<c0d61c18>] (start_kernel+0x358/0x3c0) [<c0d61c18>] (start_kernel) from [<8020807c>] (0x8020807c) Code: c0ccace8 c0ccacc0 e59f30b4 e5932000 (e5921010) Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Suggested-by: Javier Martinez Canillas <javier@dowhile0.org> Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com> Acked-by: Roger Quadros <rogerq@ti.com> [tony@atomide.com: updated description as suggested by Javier] Signed-off-by: Tony Lindgren <tony@atomide.com>		2015-08-12 01:43:49 -07:00
..
tegra	ARM: tegra: Add EMC driver for v4.2-rc1	2015-05-13 17:59:35 +02:00
Kconfig	memory: omap-gpmc: Add Kconfig option for debug	2015-06-01 19:22:10 -06:00
Makefile	memory: jz4780-nemc: driver for the NEMC on JZ4780 SoCs	2015-03-26 23:51:36 +01:00
atmel-sdramc.c	memory: drop owner assignment from platform_drivers	2014-10-20 16:20:52 +02:00
emif.c	drivers/memory: don't check resource with devm_ioremap_resource	2013-05-18 11:55:52 +02:00
emif.h	memory: emif: handle frequency and voltage change events	2012-05-02 10:52:09 -07:00
fsl-corenet-cf.c	memory/fsl-corenet-cf: Add t1040 support	2015-01-29 22:57:43 -06:00
fsl_ifc.c	fsl_ifc: Support all 8 IFC chip selects	2014-11-05 14:45:53 -08:00
jz4780-nemc.c	memory: jz4780-nemc: driver for the NEMC on JZ4780 SoCs	2015-03-26 23:51:36 +01:00
mvebu-devbus.c	memory: drop owner assignment from platform_drivers	2014-10-20 16:20:52 +02:00
of_memory.c	memory: emif: add device tree support to emif driver	2012-09-04 16:14:31 -07:00
of_memory.h	memory: fix build when CONFIG_OF && !CONFIG_DDR	2012-09-05 11:57:19 -07:00
omap-gpmc.c	memory: omap-gpmc: Don't try to save uninitialized GPMC context	2015-08-12 01:43:49 -07:00
tegra20-mc.c	memory: drop owner assignment from platform_drivers	2014-10-20 16:20:52 +02:00
ti-aemif.c	memory: drop owner assignment from platform_drivers	2014-10-20 16:20:52 +02:00