patch-2.4.3 linux/fs/binfmt_aout.c

• Lines: 53
• Date: Mon Mar 19 12:34:56 2001
• Orig file: v2.4.2/linux/fs/binfmt_aout.c
• Orig date: Wed Feb 21 18:20:38 2001

diff -u --recursive --new-file v2.4.2/linux/fs/binfmt_aout.c linux/fs/binfmt_aout.c
@@ -342,7 +342,7 @@
 
 		error = bprm->file->f_op->read(bprm->file, (char *)text_addr,
 			  ex.a_text+ex.a_data, &pos);
-		if (error < 0) {
+		if ((signed long)error < 0) {
 			send_sig(SIGKILL, current, 0);
 			return error;
 		}
@@ -377,24 +377,24 @@
 			goto beyond_if;
 		}
 
-		down(&current->mm->mmap_sem);
+		down_write(&current->mm->mmap_sem);
 		error = do_mmap(bprm->file, N_TXTADDR(ex), ex.a_text,
 			PROT_READ | PROT_EXEC,
 			MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
 			fd_offset);
-		up(&current->mm->mmap_sem);
+		up_write(&current->mm->mmap_sem);
 
 		if (error != N_TXTADDR(ex)) {
 			send_sig(SIGKILL, current, 0);
 			return error;
 		}
 
-		down(&current->mm->mmap_sem);
+		down_write(&current->mm->mmap_sem);
  		error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
 				PROT_READ | PROT_WRITE | PROT_EXEC,
 				MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
 				fd_offset + ex.a_text);
-		up(&current->mm->mmap_sem);
+		up_write(&current->mm->mmap_sem);
 		if (error != N_DATADDR(ex)) {
 			send_sig(SIGKILL, current, 0);
 			return error;
@@ -476,12 +476,12 @@
 		goto out;
 	}
 	/* Now use mmap to map the library into memory. */
-	down(&current->mm->mmap_sem);
+	down_write(&current->mm->mmap_sem);
 	error = do_mmap(file, start_addr, ex.a_text + ex.a_data,
 			PROT_READ | PROT_WRITE | PROT_EXEC,
 			MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE,
 			N_TXTOFF(ex));
-	up(&current->mm->mmap_sem);
+	up_write(&current->mm->mmap_sem);
 	retval = error;
 	if (error != start_addr)
 		goto out;