提交 d3dd73fc 编写于 作者: L Linus Torvalds

Merge tag 'microblaze-4.0-rc4' of git://git.monstr.eu/linux-2.6-microblaze

Pull arch/microblaze fixes from Michal Simek:
 "Fix syscall error recovery.

  Two patches - one is just preparation patch for the second which is
  fixing the problem with syscalls"

* tag 'microblaze-4.0-rc4' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Fix syscall error recovery for invalid syscall IDs
  microblaze: Coding style cleanup
......@@ -348,8 +348,9 @@ C_ENTRY(_user_exception):
* The LP register should point to the location where the called function
* should return. [note that MAKE_SYS_CALL uses label 1] */
/* See if the system call number is valid */
blti r12, 5f
addi r11, r12, -__NR_syscalls;
bgei r11,5f;
bgei r11, 5f;
/* Figure out which function to use for this system call. */
/* Note Microblaze barrel shift is optional, so don't rely on it */
add r12, r12, r12; /* convert num -> ptr */
......@@ -375,7 +376,7 @@ C_ENTRY(_user_exception):
/* The syscall number is invalid, return an error. */
5:
rtsd r15, 8; /* looks like a normal subroutine return */
braid ret_from_trap
addi r3, r0, -ENOSYS;
/* Entry point used to return from a syscall/trap */
......@@ -411,7 +412,7 @@ C_ENTRY(ret_from_trap):
bri 1b
/* Maybe handle a signal */
5:
5:
andi r11, r19, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
beqi r11, 4f; /* Signals to handle, handle them */
......
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