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| author | David S. Miller <davem@sunset.davemloft.net> | 2007-08-24 22:33:15 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-08-26 18:49:08 -0700 |
| commit | 6c8f5b90bfbe69a27763fb0e181bd2465181446d (patch) | |
| tree | bb62f00ccd9ab1472446831f9e1442ad6bb86f47 /drivers/video/cg3.c | |
| parent | 1bd4b280394cdd14f82efc00808c6d77b097285a (diff) | |
| download | lwn-6c8f5b90bfbe69a27763fb0e181bd2465181446d.tar.gz lwn-6c8f5b90bfbe69a27763fb0e181bd2465181446d.zip | |
[VIDEO]: Do not prom_halt() in cg3 and bw2 device probe.
Just give a normal kernel log message of the problem and
return failure.
Based upon a patch from Mark Fortescue.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/video/cg3.c')
| -rw-r--r-- | drivers/video/cg3.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/video/cg3.c b/drivers/video/cg3.c index 5741b46ade1b..a5c7fb331527 100644 --- a/drivers/video/cg3.c +++ b/drivers/video/cg3.c @@ -315,7 +315,7 @@ static u_char cg3_dacvals[] __devinitdata = { 4, 0xff, 5, 0x00, 6, 0x70, 7, 0x00, 0 }; -static void __devinit cg3_do_default_mode(struct cg3_par *par) +static int __devinit cg3_do_default_mode(struct cg3_par *par) { enum cg3_type type; u8 *p; @@ -332,10 +332,9 @@ static void __devinit cg3_do_default_mode(struct cg3_par *par) else type = CG3_AT_66HZ; } else { - prom_printf("cgthree: can't handle SR %02x\n", - status); - prom_halt(); - return; + printk(KERN_ERR "cgthree: can't handle SR %02x\n", + status); + return -EINVAL; } } @@ -351,6 +350,7 @@ static void __devinit cg3_do_default_mode(struct cg3_par *par) regp = (u8 __iomem *)&par->regs->cmap.control; sbus_writeb(p[1], regp); } + return 0; } static int __devinit cg3_probe(struct of_device *op, @@ -400,8 +400,11 @@ static int __devinit cg3_probe(struct of_device *op, cg3_blank(0, info); - if (!of_find_property(dp, "width", NULL)) - cg3_do_default_mode(par); + if (!of_find_property(dp, "width", NULL)) { + err = cg3_do_default_mode(par); + if (err) + goto out_unmap_screen; + } if (fb_alloc_cmap(&info->cmap, 256, 0)) goto out_unmap_screen; |