uaccess: fix type mismatch warnings from access_ok()

[mirror_ubuntu-jammy-kernel.git] / arch / riscv / kernel / perf_callchain.c

diff --git a/arch/riscv/kernel/perf_callchain.c b/arch/riscv/kernel/perf_callchain.c
index d82c291c1e4ca1f4bf086c76fdb1af8c8c168f1b..357f985041cb914d383d93c0410fb8b764f78f1b 100644 (file)
--- a/arch/riscv/kernel/perf_callchain.c
+++ b/arch/riscv/kernel/perf_callchain.c
@@ -15,8 +15,8 @@ static unsigned long user_backtrace(struct perf_callchain_entry_ctx *entry,
 {
        struct stackframe buftail;
        unsigned long ra = 0;
-       unsigned long *user_frame_tail =
-                       (unsigned long *)(fp - sizeof(struct stackframe));
+       unsigned long __user *user_frame_tail =
+               (unsigned long __user *)(fp - sizeof(struct stackframe));
 
        /* Check accessibility of one struct frame_tail beyond */
        if (!access_ok(user_frame_tail, sizeof(buftail)))