Commit 2ad0a0a7 authored by Dominik Brodowski's avatar Dominik Brodowski Committed by Linus Torvalds
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[PATCH] pcmcia: resource handling fixes 



- properly bail out in set_cis_map if call to socket driver's set_mem_map
  failed
- don't abort do_mem_probe cycle if one entry failed (!CONFIG_PCMCIA_PROBE)
- don't do iomem probing in chunks larger than 0x800000 (1 << 23) as
  yenta_socket and vrc4173_cardu.c fail to set_mem_map for windows equal to
  or larger than (1 << 24).

Signed-off-by: default avatarDominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent f861bd23

drivers/pcmcia/cistpl.c

+8 −1
Original line number Diff line number Diff line
@@ -89,6 +89,8 @@ static void __iomem * 
set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flags)

{

    pccard_mem_map *mem = &s->cis_mem;

    int ret;



    if (!(s->features & SS_CAP_STATIC_MAP) && mem->res == NULL) {

	mem->res = pcmcia_find_mem_region(0, s->map_size, s->map_size, 0, s);

	if (mem->res == NULL) {
@@ -99,7 +101,12 @@ set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flag 
    }

    mem->card_start = card_offset;

    mem->flags = flags;

    s->ops->set_mem_map(s, mem);

    ret = s->ops->set_mem_map(s, mem);

    if (ret) {

	iounmap(s->cis_virt);

	return NULL;

    }



    if (s->features & SS_CAP_STATIC_MAP) {

	if (s->cis_virt)

	    iounmap(s->cis_virt);

drivers/pcmcia/rsrc_nonstatic.c

+4 −2
Original line number Diff line number Diff line
@@ -372,6 +372,9 @@ static int do_mem_probe(u_long base, u_long num, struct pcmcia_socket *s) 
	   base, base+num-1);

    bad = fail = 0;

    step = (num < 0x20000) ? 0x2000 : ((num>>4) & ~0x1fff);

    /* don't allow too large steps */

    if (step > 0x800000)

	step = 0x800000;

    /* cis_readable wants to map 2x map_size */

    if (step < 2 * s->map_size)

	step = 2 * s->map_size;
@@ -465,8 +468,7 @@ static void validate_mem(struct pcmcia_socket *s, unsigned int probe_mask) 


	for (m = s_data->mem_db.next; m != &s_data->mem_db; m = mm.next) {

		mm = *m;

		if (do_mem_probe(mm.base, mm.num, s))

			break;

		do_mem_probe(mm.base, mm.num, s);

	}

}

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