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authorRichard Henderson <richard.henderson@linaro.org>2022-07-08 20:45:31 +0530
committerPeter Maydell <peter.maydell@linaro.org>2022-07-11 13:43:51 +0100
commit5726597c3bab1653c8707ec964832eac46bdea37 (patch)
treeb558439140a105318862b517a9a31fd37116d918 /linux-user
parent4a29c36316b58a232715cbf8185dec28a681892c (diff)
linux-user/aarch64: Tidy target_restore_sigframe error return
Fold the return value setting into the goto, so each point of failure need not do both. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220708151540.18136-37-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'linux-user')
-rw-r--r--linux-user/aarch64/signal.c24
1 files changed, 10 insertions, 14 deletions
diff --git a/linux-user/aarch64/signal.c b/linux-user/aarch64/signal.c
index 3cef2f44cf..8b352abb97 100644
--- a/linux-user/aarch64/signal.c
+++ b/linux-user/aarch64/signal.c
@@ -287,7 +287,6 @@ static int target_restore_sigframe(CPUARMState *env,
struct target_sve_context *sve = NULL;
uint64_t extra_datap = 0;
bool used_extra = false;
- bool err = false;
int vq = 0, sve_size = 0;
target_restore_general_frame(env, sf);
@@ -301,8 +300,7 @@ static int target_restore_sigframe(CPUARMState *env,
switch (magic) {
case 0:
if (size != 0) {
- err = true;
- goto exit;
+ goto err;
}
if (used_extra) {
ctx = NULL;
@@ -314,8 +312,7 @@ static int target_restore_sigframe(CPUARMState *env,
case TARGET_FPSIMD_MAGIC:
if (fpsimd || size != sizeof(struct target_fpsimd_context)) {
- err = true;
- goto exit;
+ goto err;
}
fpsimd = (struct target_fpsimd_context *)ctx;
break;
@@ -329,13 +326,11 @@ static int target_restore_sigframe(CPUARMState *env,
break;
}
}
- err = true;
- goto exit;
+ goto err;
case TARGET_EXTRA_MAGIC:
if (extra || size != sizeof(struct target_extra_context)) {
- err = true;
- goto exit;
+ goto err;
}
__get_user(extra_datap,
&((struct target_extra_context *)ctx)->datap);
@@ -348,8 +343,7 @@ static int target_restore_sigframe(CPUARMState *env,
/* Unknown record -- we certainly didn't generate it.
* Did we in fact get out of sync?
*/
- err = true;
- goto exit;
+ goto err;
}
ctx = (void *)ctx + size;
}
@@ -358,17 +352,19 @@ static int target_restore_sigframe(CPUARMState *env,
if (fpsimd) {
target_restore_fpsimd_record(env, fpsimd);
} else {
- err = true;
+ goto err;
}
/* SVE data, if present, overwrites FPSIMD data. */
if (sve) {
target_restore_sve_record(env, sve, vq);
}
+ unlock_user(extra, extra_datap, 0);
+ return 0;
- exit:
+ err:
unlock_user(extra, extra_datap, 0);
- return err;
+ return 1;
}
static abi_ulong get_sigframe(struct target_sigaction *ka,