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authorSergey Shtylyov <s.shtylyov@omp.ru>2022-10-15 00:22:34 +0300
committerAndrew Morton <akpm@linux-foundation.org>2022-11-15 14:30:41 -0800
commit37f653033ac2f7465177492453dcefa91dbffc3a (patch)
treee629465e1fcf489005b4f91b7ea13937962db706
parentaafdac9ab37577c5f0ec64fa871334232e7cbb06 (diff)
downloadlinux-37f653033ac2f7465177492453dcefa91dbffc3a.tar.bz2
sparc: ptrace: user_regset_copyin_ignore() always returns 0
user_regset_copyin_ignore() always returns 0, so checking its result seems pointless -- don't do this anymore... Link: https://lkml.kernel.org/r/20221014212235.10770-13-s.shtylyov@omp.ru Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru> Cc: Brian Cain <bcain@quicinc.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: David S. Miller <davem@davemloft.net> Cc: Dinh Nguyen <dinguyen@kernel.org> Cc: Helge Deller <deller@gmx.de> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.osdn.me> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--arch/sparc/kernel/ptrace_32.c9
-rw-r--r--arch/sparc/kernel/ptrace_64.c23
2 files changed, 16 insertions, 16 deletions
diff --git a/arch/sparc/kernel/ptrace_32.c b/arch/sparc/kernel/ptrace_32.c
index e7db48acb838..c273ccebea46 100644
--- a/arch/sparc/kernel/ptrace_32.c
+++ b/arch/sparc/kernel/ptrace_32.c
@@ -158,8 +158,9 @@ static int genregs32_set(struct task_struct *target,
35 * sizeof(u32), 36 * sizeof(u32));
if (ret || !count)
return ret;
- return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
- 36 * sizeof(u32), 38 * sizeof(u32));
+ user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, 36 * sizeof(u32),
+ 38 * sizeof(u32));
+ return 0;
}
static int fpregs32_get(struct task_struct *target,
@@ -203,8 +204,8 @@ static int fpregs32_set(struct task_struct *target,
33 * sizeof(u32),
34 * sizeof(u32));
if (!ret)
- ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
- 34 * sizeof(u32), -1);
+ user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+ 34 * sizeof(u32), -1);
return ret;
}
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index 86a7eb5c27ba..4deba5b6eddb 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -332,8 +332,8 @@ static int genregs64_set(struct task_struct *target,
}
if (!ret)
- ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
- 36 * sizeof(u64), -1);
+ user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+ 36 * sizeof(u64), -1);
return ret;
}
@@ -406,8 +406,8 @@ static int fpregs64_set(struct task_struct *target,
task_thread_info(target)->fpsaved[0] = fprs;
if (!ret)
- ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
- 35 * sizeof(u64), -1);
+ user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+ 35 * sizeof(u64), -1);
return ret;
}
@@ -473,10 +473,8 @@ static int setregs64_set(struct task_struct *target,
15 * sizeof(u64));
if (ret)
return ret;
- ret =user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
- 15 * sizeof(u64), 16 * sizeof(u64));
- if (ret)
- return ret;
+ user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+ 15 * sizeof(u64), 16 * sizeof(u64));
/* TSTATE */
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
&tstate,
@@ -670,8 +668,9 @@ finish:
pos *= sizeof(reg);
count *= sizeof(reg);
- return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
- 38 * sizeof(reg), -1);
+ user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+ 38 * sizeof(reg), -1);
+ return 0;
}
static int fpregs32_get(struct task_struct *target,
@@ -737,8 +736,8 @@ static int fpregs32_set(struct task_struct *target,
task_thread_info(target)->fpsaved[0] = fprs;
if (!ret)
- ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
- 34 * sizeof(u32), -1);
+ user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+ 34 * sizeof(u32), -1);
return ret;
}