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-rw-r--r--arch/mips/kernel/process.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index a11c6f9fdd5e..a33d2ef8f273 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -156,7 +156,8 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
*childregs = *regs;
childregs->regs[7] = 0; /* Clear error flag */
childregs->regs[2] = 0; /* Child gets zero as return value */
- childregs->regs[29] = usp;
+ if (usp)
+ childregs->regs[29] = usp;
ti->addr_limit = USER_DS;
p->thread.reg29 = (unsigned long) childregs;