[MTD] [OneNAND] omap2: panic_write may be in an interrupt context
panic_write may read in an interrupt context.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index 77a4f14..2c199b3 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -294,6 +294,10 @@
if (bram_offset & 3 || (size_t)buf & 3 || count < 384)
goto out_copy;
+ /* panic_write() may be in an interrupt context */
+ if (in_interrupt())
+ goto out_copy;
+
if (buf >= high_memory) {
struct page *p1;
