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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2006-01-09 14:18:33 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-01-09 14:18:33 -0500
commit0a3a98f6dd4e8f4d928a09302c0d1c56f2192ac3 (patch)
tree92f55e374a84d06ce8213a4540454760fdecf137 /arch/sparc64/kernel/ptrace.c
parent8ef12c9f01afba47c2d33bb939085111ca0d0f7d (diff)
parent5367f2d67c7d0bf1faae90e6e7b4e2ac3c9b5e0f (diff)
Merge Linus' tree.
Diffstat (limited to 'arch/sparc64/kernel/ptrace.c')
-rw-r--r--arch/sparc64/kernel/ptrace.c34
1 files changed, 5 insertions, 29 deletions
diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
index 774ecbb8a031..84d3df2264cb 100644
--- a/arch/sparc64/kernel/ptrace.c
+++ b/arch/sparc64/kernel/ptrace.c
@@ -198,39 +198,15 @@ asmlinkage void do_ptrace(struct pt_regs *regs)
198 } 198 }
199#endif 199#endif
200 if (request == PTRACE_TRACEME) { 200 if (request == PTRACE_TRACEME) {
201 int ret; 201 ret = ptrace_traceme();
202
203 /* are we already being traced? */
204 if (current->ptrace & PT_PTRACED) {
205 pt_error_return(regs, EPERM);
206 goto out;
207 }
208 ret = security_ptrace(current->parent, current);
209 if (ret) {
210 pt_error_return(regs, -ret);
211 goto out;
212 }
213
214 /* set the ptrace bit in the process flags. */
215 current->ptrace |= PT_PTRACED;
216 pt_succ_return(regs, 0); 202 pt_succ_return(regs, 0);
217 goto out; 203 goto out;
218 } 204 }
219#ifndef ALLOW_INIT_TRACING
220 if (pid == 1) {
221 /* Can't dork with init. */
222 pt_error_return(regs, EPERM);
223 goto out;
224 }
225#endif
226 read_lock(&tasklist_lock);
227 child = find_task_by_pid(pid);
228 if (child)
229 get_task_struct(child);
230 read_unlock(&tasklist_lock);
231 205
232 if (!child) { 206 child = ptrace_get_task_struct(pid);
233 pt_error_return(regs, ESRCH); 207 if (IS_ERR(child)) {
208 ret = PTR_ERR(child);
209 pt_error_return(regs, -ret);
234 goto out; 210 goto out;
235 } 211 }
236 212