diff options
Diffstat (limited to 'lib/params.c')
| -rw-r--r-- | lib/params.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/lib/params.c b/lib/params.c index 4d48cab..979fb16 100644 --- a/lib/params.c +++ b/lib/params.c @@ -1,7 +1,7 @@ /* * The PCI Library -- Parameters * - * Copyright (c) 2008 Martin Mares <mj@ucw.cz> + * Copyright (c) 2008--2023 Martin Mares <mj@ucw.cz> * * Can be freely distributed and used under the terms of the GNU GPL. */ @@ -26,10 +26,24 @@ pci_get_param(struct pci_access *acc, char *param) void pci_define_param(struct pci_access *acc, char *param, char *value, char *help) { - struct pci_param *p = pci_malloc(acc, sizeof(*p)); + struct pci_param *p, **pp; - p->next = acc->params; - acc->params = p; + for (pp=&acc->params; p = *pp; pp=&p->next) + { + int cmp = strcmp(p->param, param); + if (!cmp) + { + if (strcmp(p->value, value) || strcmp(p->help, help)) + acc->error("Parameter %s re-defined differently", param); + return; + } + if (cmp > 0) + break; + } + + p = pci_malloc(acc, sizeof(*p)); + p->next = *pp; + *pp = p; p->param = param; p->value = value; p->value_malloced = 0; |