Sansa AMS: Don't allocate stack in irq_handler

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19338 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 2 insertions, 4 deletions

diff --git a/firmware/target/arm/as3525/system-as3525.c b/firmware/target/arm/as3525/system-as3525.c
index 82a0a01795..649ba77527 100644
--- a/firmware/target/arm/as3525/system-as3525.c
+++ b/firmware/target/arm/as3525/system-as3525.c
@@ -104,8 +104,7 @@ void irq_handler(void)
      * Based on: linux/arch/arm/kernel/entry-armv.S and system-meg-fx.c
      */
 
-    asm volatile(   "stmfd sp!, {r0-r7, ip, lr} \n"   /* Store context */
-                    "sub   sp, sp, #8           \n"); /* Reserve stack */
+    asm volatile(   "stmfd sp!, {r0-r7, ip, lr} \n" );/* Store context */
 
     unsigned int irq_no = 0;
     int status = VIC_IRQ_STATUS;
@@ -114,8 +113,7 @@ void irq_handler(void)
 
     irqvector[irq_no]();
 
-    asm volatile(   "add   sp, sp, #8           \n"   /* Cleanup stack   */
-                    "ldmfd sp!, {r0-r7, ip, lr} \n"   /* Restore context */
+    asm volatile(   "ldmfd sp!, {r0-r7, ip, lr} \n"   /* Restore context */
                     "subs  pc, lr, #4           \n"); /* Return from IRQ */
 }