commit 9d964e1b82d8182184153b70174f445ea616f053
author Al Viro <viro@zeniv.linux.org.uk> Sat Jun 06 23:44:24 2020 -0400
committer Al Viro <viro@zeniv.linux.org.uk> Sun Jun 07 10:37:09 2020 -0400
tree dac78c1823e33e379b8949116d77d59e7114a538
parent cf51e129b96847f969bfb8af1ee1516a01a70b39

fix a braino in "sparc32: fix register window handling in genregs32_[gs]et()"

lost npc in PTRACE_SETREGSET, breaking PTRACE_SETREGS as well

Fixes: cf51e129b968 "sparc32: fix register window handling in genregs32_[gs]et()"
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/sparc/kernel/ptrace_32.c

diff --git a/arch/sparc/kernel/ptrace_32.c b/arch/sparc/kernel/ptrace_32.c
index 60f7205..646dd58 100644
--- a/arch/sparc/kernel/ptrace_32.c
+++ b/arch/sparc/kernel/ptrace_32.c
@@ -168,12 +168,17 @@ static int genregs32_set(struct task_struct *target,
 	if (ret || !count)
 		return ret;
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				 &regs->y,
+				 &regs->npc,
 				 34 * sizeof(u32), 35 * sizeof(u32));
 	if (ret || !count)
 		return ret;
+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+				 &regs->y,
+				 35 * sizeof(u32), 36 * sizeof(u32));
+	if (ret || !count)
+		return ret;
 	return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
-					 35 * sizeof(u32), 38 * sizeof(u32));
+					 36 * sizeof(u32), 38 * sizeof(u32));
 }
 
 static int fpregs32_get(struct task_struct *target,